Originally aired: Sunday February 22, 1970 on ABC
Writer: Anthony Wilson
Director: Harry Harris
Show Stars: Don Marshall (Dan Erickson), Deanna Lund (Valerie Ames Scott), Heather Young (I) (Betty Hamilton), Gary Conway (Captain Steve Burton), Stefan Arngrim (Barry Lockridge), Don Matheson (Mark Wilson), Kurt Kasznar (Commander Alexander B. Fitzhugh)
Guest Stars: Sean Kelly (Alek Erdap) , Charles Drake (Mr. Erdap) , Miriam Schiller (Nurse)
Production Code: 4724
Barry is attacked by a toy soldier remote-controlled by a boy with a small toy army. The kid, Alek, believes that the Earthlings are sophisticated toys used by his rival Falco, spots the Spindrift, and unleashes a series of attacks on the little people.
They manage to defeat the toy soldiers, jeep-mounted machine gun, and tank. The group disagrees on how to deal with Alek: Mark wants to blow him up. He tries, but Barry tries to stop him and they both get captured. While Alek bombs the ship with a toy plane, the group frees the two "prisoners.?
Dan is wounded, and when Alek sees the blood Betty convinces the kid they are indeed real. Alek's father shows up and figures out the boy has been dealing with Earthlings. He tries to search for them, and corners Valerie and Fitzhugh. Steve launches an attack with the plane, and is hit by a thrown rock, but the repentant Alex brings him down by remote control while everyone escapes. The disgruntled father leaves, as does Alek without revealing what he knows of the Earthlings and their camp.