Ep 45. The Ultraman: S1 E45 - Pig Becomes A Walking Bomb

A transport airplane carrying Terrestrial Defense Force Unit 201 returns from the northern base to the Far East Zone, but there is something wrong with the captain and the 51 soldiers. Immediately afterwards, the power generating room at the base is blown up by someone. It was from a bomb planted on the base by androids disguised as soldiers.