Lost in Space (1965)
S02E26 Trip Through the Robot
Episode Overview
The Robinsons find their power supply dwindling, leaving the Robot unable to recharge. Feeling like a liability, the Robot decides to leave the group. When they realize they want him back, he's nowhere to be found. Late one night, Will and Dr. Smith stumble upon him, only to discover he has grown to an enormous size due to the gases in the environment. Determined to help, Will concludes that the only way to shrink him back down is to enter his body and work from within. Can they escape before it’s too late?