Original subtitles

The movie is set in the year 1962, when the United States and the Soviet Union are at each

other’s neck. In America, there is a rumor that the Soviets may drop a nuclear bomb anytime soon,

prompting many citizens to build a secret bunker in their house. Eccentric scientist; Dr. Calvin

Webber is one of those citizens, and after months of hard work, he has built an advanced

fallout bunker in his backyard, which has all the amenities required to survive a nuclear war.

One day, Calvin organizes a party at his house and invites several of his colleagues.

While everyone is enjoying themselves, President Kennedy announces on live

television that they are planning a secret mission against the Soviets.

This terrifies Calvin, and he believes that the war is about to commence shortly. Hence,

he sends all the guests away and hurries to his secret bunker along with his pregnant wife; Helen.

At the same time, an aircraft is flying over the city when it experiences a mechanical failure.

It crashes straight into Calvin’s house, destroying it completely.

Inside the bunker, Calvin deduces that the nuclear war has begun,

and immediately seals the door. He then tells his wife that the door will open only after 35 years,

as it takes the same time for nuclear particles to normalize in the atmosphere. With the house

completely destroyed, the Webbers’ neighbors and authorities assume they were killed in the crash.

Now, with each passing day, the couple starts adjusting to life inside the bunker.

While Calvin feels at home, Helen is uncomfortable and constantly worries

about her family and friends. One day, Helen’s water breaks, and she gives birth to a son.

The couple is over the moon to have a child, and they name him Adam.

In the following scene, we see a bigger view of their bunker.

It has enough stocks to last 35 years, including a fish tank,

fuels, a well-facilitated lounge area, and a mini-mart full of food.

As time passes, Calvin homeschools his son and teaches him about the history

of America. He wishes his son could one day rebuild the country as it was before.

The movie then skips to the summer of 1965 when a team of construction workers cleans

out Calvin’s destroyed ground and builds a diner.

Cut to 10 more years, it is now the autumn of 1975. Adam has grown into

a kind and generous boy, who likes spending time with his parents.

He takes regular boxing classes from his father, and dance classes from his mother.

Meanwhile, the diner becomes a pizzeria and then a nightclub. In the basement, Calvin continues to

teach his son about various topics. He explains about the stock market and gives lessons in

French and Latin. While they talk, Calvin compliments his son’s incredible sense of humor.

One day, Calvin gives Adam a collection of his baseball cards and explains to him about sports.

The movie then skips to the summer of 1995, where Calvin and Helen celebrate their son’s

33rd birthday. Adam is a grown man now; who desires to find a partner for himself.

Next, it’s 1997, and the bunker has reached its maturity. Finally, after 35 years, the bunker’s

door automatically unlocks itself, and the family excitedly goes to check. Calvin insists that they

wait for the night and let him check first, since they’re unknown of the present world outside.

Above the bunker, the diner has now become a home to beggars. While the beggars are drinking,

there’s a sudden shaking of the ground, and they think it's an earthquake. However,

It turns out that Calvin has come up to the surface with a radiation suit on,

and seeing him, one of the beggars falls unconscious.

Following this, Calvin ventures out into his old neighbourhood,

only to find out that it has completely changed. He sees people

playfully pointing guns at him and even stumbles into an adult video store.

Realizing that his neighbourhood has degraded, he gets worried and returns to the bunker.

At the dinner table, he shares with his family that although the ground above

is breathable, it has become a post-apocalyptic wasteland of irradiated mutants. As a result,

they must continue living underground. Helen, who at this point has become sick

of living in the bunker, starts arguing. She mentions that no matter the people above,

she wants to come out of their cooped shell and wants Adam to see the blue skies,

touch the oceans, and visit the mountains. Despite the inspiring speech, Calvin still

insists they stay underground, but as he is arguing, he suffers a heart attack.

With supplies running out and Calvin falling ill, Helen wants Adam to go outside

and get whatever they need for two years or so. She gives him a list of grocery items

and tells him that it would be wonderful if he can find a girl, one who’s not a mutant.

Before leaving, Calvin advises Adam to not enter the adult video store, claiming that it

has harmful levels of radiation. Actually, he is just trying to keep his son away from vulgarity.

After a while, Adam packs his handbag and leaves the bunker for the first time. On the surface,

he comes across the beggar, Melker, who encountered his father the previous night.

While Adam marvels at the outside world, Melker starts worshiping Calvin

and the elevator through which he and Adam made their way out. Melker thinks of them as some

divine powers that have struck his life to change his fate.

Meanwhile, Adam finally sees the blue sky above and waves at the people in the streets as he is

seeing them for the first time. He’s stunned to see a woman of color and greets her excitedly.

Next, he stumbles upon the same adult video store his father had warned him about,

so he quickly covers his nose and urges others to do the same.

Later, Adam gets on a bus but he is scared to feel the vehicle moving. He speaks as

per his taught knowledge but that apparently doesn’t fit with the normal life at present.

The passengers on the bus think that he is crazy and the bus driver even gives him a weird stare.

After a while, Adam finally arrives at a grocery store and strolls around to pick

up the items his mom had listed for him. When he goes to buy meat, the butcher tells him that

if he makes a larger order, it would be directly delivered to his house. Hearing the word ‘house’,

Adam realizes that he has forgotten the way back to his bunker.

Worried, he desperately looks around the city for his bunker’s location, but doesn’t find any sign

of it. By this point, his cash has almost run out, so he tries to sell his father’s classic

baseball cards at a hobby shop. The shop owner concludes that Adam is crazy for trying to sell

the cards for a surprisingly low price, so he offers to buy the whole pack for just $500.

Just then, the shop’s assistant; Eve, approaches the two and stops the owner from cheating.

She informs Adam that each of his cards costs at least $6000,

as they are extremely rare. She then berates her boss,

and quits her job on the spot. Witnessing all this, Adam gets instantly smitten by her.

After coming out of the store, he begs Eve to drive him to the Holiday

Inn restaurant, as per his mother’s instructions. At first,

Eve refuses, but when Adam promises to give her 2 cards in return,

she agrees. Soon, the two arrive at the hotel, but before Adam can say anything, Eve returns home.

The following morning, Adam gets a call from Eve,

who asks him to come down to the lounge area. It turns out that she has come to give back his card,

since she feels guilty. After returning the card, she tries to walk away,

but Adam asks her to help purchase supplies in exchange for $1,000 a week as her pay.

Eve agrees and they buy truckloads of supplies as Adam has to make sure that the supplies last

for at least two years. Later, he also asks Eve to help him find a wife who is not a mutant.

In the next scene, Adam meets Eve’s gay housemate and best friend; Troy,

who is a bit curious by nature. He asks Adam about his hometown and the latter

lies that he is originally from Alaska, and has come here for a business trip.

Later, Eve and Troy give Adam a fashion makeover, and the two even take him skateboarding.

Next, Adam gets the chance to see the ocean for the first time

and he excitedly dives into the water and enjoys himself. He also attends a

baseball game and shouts in excitement that he finally knows what his father was talking about.

One day, it starts raining, and Adam feels the rainwater for the first time in his life.

Eve urges him to return to the house, but Adam wants to keep experiencing the wonderful feeling.

Out of nowhere, he hugs Eve tightly, implying that he is enjoying life in the real world.

Later that evening, Eve and Troy take Adam to a 1940s swing-style nightclub

to find him a wife. They advise him to be himself while approaching women.

Surprisingly, Adam attracts the attention of several women, including Eve’s nemesis

Sophie. When he and Sophie start to get along, Eve feels uncomfortable and drags Adam away to

a table. Shen then recommends he look for a ‘sweet’ girl instead of Sophie.

After a while, Adam approaches a girl and they soon get along when he asks her for a dance.

In no time, Adam woos the crowd with his exemplary dancing skills, as he has had

years of practice inside the bunker. Meanwhile, a jealous Eve reconnects with her ex-boyfriend,

who pokes Adam into an argument. However, he soon regrets it when Adam demonstrates

his boxing skills, having trained every single day with his father at the bunker.

Because of all the commotion, Eve gets irritated and decides to abandon Adam and return home.

A while later, Troy also arrives and informs Eve that Adam left the club with

Sophie. Hearing this, Eve storms out of the house and gets in her car to get Adam back.

Just as she is about to drive off, Adam suddenly knocks on the door, startling the life out of her.

Following this, the two return to the house and Adam explains that he politely rejected Sophie as

he could only think of Eve. He then expresses his love for her,

and the two finally kiss. Now, with Eve by his side, he decides to tell her about his past.

He reveals that he lived in a fallout bunker with his family for 35 years,

and is seeing the outside world for the first time.

He also expresses his desire to make Eve his wife, and take her to the bunker,

so that they can live a happy life. However, Eve thinks he is crazy and asks him to leave.

The following day, while learning to drive a truck with Troy, Adam spots the adult video store from

earlier and finally discovers his bunker’s location. He hurries back to Eve’s house

to tell her about his finding but notices two psychiatrists waiting for him there.

Adam initially cooperates, but escapes after giving Eve and Troy the key to his hotel room.

He asks them to take all the cards and pay his hotel bill before driving away in a truck.

A while later, Troy and Eve reach Adam’s room in the hotel and find clothing,

toothpaste and other items from the 1960s. They also come across some valuable stock

certificates of Adam’s father, which are now worth millions. With this,

they conclude that Adam is not crazy and he was actually telling the truth the whole time.

In the meantime, Adam returns home after two weeks of staying in the outside world.

He hugs his parents and tells them about how lovely the world has become.

Soon, Melker and his friends help Adam load the supplies into the bunker.

On the other hand, Eve and Troy try to locate Adam’s underground bunker but to no avail.

At night, while they are returning home, Eve spots Adam outside the adult video store.

She immediately calls out his name and gets out of the car. They embrace

and kiss each other, and Adam takes her to meet his parents.

Calvin and Helen are impressed with Eve,

but Adam wants his father to wait for 2 months, while he makes arrangements outside.

During this time, Adam and Eve sell the stocks to build a new home in the country,

identical to his previous house. They plan to bring Calvin and Helen slowly

to the surface and start a new life with them.

After a few months, Adam’s parents arrive at their new home. They are astonished to see their

son do so much for them. While Helen and Eve prepare dinner for the family, Adam reveals to

his father that there was never an atomic war, and that the “bomb” was not a bomb; instead,

a plane crashed into their house. He also reveals that the Soviet Union collapsed without a war.

However, Calvin is unconvinced and makes fun of his son’s revelation.

The movie ends as Calvin plans to build a new fallout bunker

as Eve watches from the kitchen window and plays with her engagement ring.