Doraemon: Nobita and the Tin Labyrinth

Nobita's father watches a strange advertisement for the Burikin Hotel on TV at midnight and, without realizing it, commits to a stay. The family is excited but unaware of the bizarre voyage that has just begun. This impulsive reservation kickstarts the entire adventure.

The next day Nobita pushes for a holiday, only to discover his parents cannot locate the hotel on Earth. They start to think Nobita might have dreamed or misremembered the promise. Nobita grows anxious about whether the trip will ever happen.

A mysterious suitcase appears in the house and, when opened, creates a portal to another world. Nobita and Doraemon step through and find the Burikin Hotel, run by tin robots, offering a free stay. The wonder quickly turns to curiosity as they settle in.

The hotel staff greet Nobita and Doraemon with friendly hospitality, but the tin robots warn them not to enter the basement. Nobita and Doraemon begin their stay, enjoying the novelty of a vacation in a machine-made world.

Nobita asks Doraemon for a gadget to help him ski on a nearby mountain, and Doraemon reluctantly provides a high-powered ski. Nobita takes off before Doraemon can explain how it works and quickly loses control, separating from his friend.

While Doraemon searches for Nobita with the Bamboo Copter, a zeppelin—mistaken for hotel staff—fires on him and knocks him from the sky. Nobita, meanwhile, is trying to find Doraemon but returns to an empty hotel with nobody around.

Doraemon is captured by a small robot army and interrogated as Nobita remains separated. He manages to free himself briefly but is knocked out again while investigating further.

Days pass with no Doraemon; Nobita is accused by Gian and Suneo of lying, while Shizuka defends him. To prove the hotel exists, Nobita uses the suitcase to show his friends, though they still can't find any staff.

Planes bomb the group, but they defend themselves with rocks and trees, and a rocket reveals Doraemon captor and the hotel island lifts into space. Burikin then reveals the hotel staff and his own backstory, explaining why they fled their planet.

Burikin explains that on planet Chamocha, tin robots were created to help, and Napogisutora rebelled, turning against humans. He reveals that Napogisutora captured humans, including Burikin's parents, forcing Burikin to flee into space and seek help.

Gian and Suneo head for Mechapolis by submarine in disguise to locate human prisoners. Meanwhile, Nobita, Shizuka, Burikin, Tap, and a robot mouse navigate the hotel's basement labyrinth to reach a secret lab; the basement collapses after an attack.

Nobita and Shizuka retrieve Doraemon with the help of a spare pocket and a Mini-Dora, reuniting with their friend in the ocean. They map the labyrinth and discover a disc containing a powerful robot virus, intended to stop Napogisutora.