Ep. 125: Nobita and friends investigate a supposedly alien-infested house in the woods.
Aired on August 24, 1979

125
Nobita and his friends wager on the existence of aliens by entering a wooded house rumored to be inhabited by extraterrestrials. After returning home, Nobita enlists Doraemon’s assistance to remotely scan the location. Upon witnessing something inside, Nobita and Doraemon flee the scene. Meanwhile, Gian and Suneo enter the structure to explore it themselves. The investigation reveals that the building is merely a prop house designed for filming alien movies, debunking the supernatural claims. The group’s bet is resolved by this mundane explanation, confirming that no actual aliens were present in the structure.
Episodes
- Ep. 121 · Nobita seeks a new study environment using Doraemon's desert illusion machine
- Ep. 122 · Nikmenine
- Ep. 123 · Nobita discovers a deceptive mirror that alters appearances to create an illusion of beauty.
- Ep. 124 · Nobita uses a magical rope to rescue a girl after Suneo misuses it for pranks.
- Ep. 125 · Nobita and friends investigate a supposedly alien-infested house in the woods.
- Ep. 126 · Nobita attempts good deeds with bad results, then tries evil acts that turn good thanks to Doraemon.
- Ep. 127 · Nobita's father dislikes boy games, leading to a gender-swapping spray incident
- Ep. 128 · A mistreated dog swaps places with its abusive owner using the Pengpeng leaf for a day of freedom
- Ep. 129 · A man searches his neighborhood for his identity while Doraemon uses a hammer to project his memories.