Ep. 113: Atom and Dr. Ochanomizu investigate the nation of Back after it bans laughter and invention.
Aired on April 3, 1965

113
The nation of Back abruptly secedes from the World Peace Union and imposes a strict prohibition on both invention and laughter upon its citizens. In response to this sudden isolation and the new restrictive policies, Atom and Dr. Ochanomizu travel to the country. Their mission is to uncover the reasons behind this closed-door dictatorial approach and understand the circumstances that led to the ban on joy and innovation within the region.
Episodes
- Ep. 109 · Atom discovers an unidentified egg on an island while playing with Uran
- Ep. 110 · Atom investigates a thermal bomb on Earth and travels to Mercury to find its origin.
- Ep. 111 · The conceited robot Polymer raids Atom's home claiming to be the world's strongest.
- Ep. 112 · Dr. Ochanomizu creates solar-powered robot Samson that turns violent under moonlight.
- Ep. 113 · Atom and Dr. Ochanomizu investigate the nation of Back after it bans laughter and invention.
- Ep. 114 · A giant slug attacks trains in a subway yard, proving difficult for Atom to defeat.
- Ep. 115 · Mint Bureau Machines Gain Limbs and Rebel Against Overwork
- Ep. 116 · Atom faces the world's most powerful robot, Pluto, in this first part of the battle.
- Ep. 117 · Atom struggles against Pluto, the world's most powerful robot with electromagnetic horns