Ep. 141: March faces disassembly challenge from Gold's Horsepower locomotive in a high-stakes race.
Aired on November 6, 1965

141
The children hold a deep affection for March, an atomic-powered locomotive. Jealousy drives Gold to issue a challenge against March, introducing a rival machine named Horsepower. The competition is governed by a severe rule stating that the defeated party must be completely disassembled. Throughout the event, Gold employs various obstructive tactics to hinder March's progress. This conflict highlights the intense rivalry between the two machines as they compete for the children's favor under the threat of permanent dismantling.
Episodes
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- Ep. 138 · Abnormal weather strikes Earth as Atom uncovers alien sabotage of the planet's orbit
- Ep. 139 · Scientist transfers Atom's AI to adult robot body while his original form is stolen
- Ep. 140 · The King and Atom
- Ep. 141 · March faces disassembly challenge from Gold's Horsepower locomotive in a high-stakes race.
- Ep. 142 · Atom discovers a fallen soldier's diary on an ice planet, sparking a shameful human conflict over two diamonds.
- Ep. 143 · Robot and human boys clash on preserved Bird Street
- Ep. 144 · Atom rescues Robot Muller, sparking a bond that masks his true destructive purpose.
- Ep. 145 · Atom receives a dangerous deep sea mission to locate and defuse an H-bomb plane.