Synopsis by Hal Erickson
Albert Salmi chews the scenery as space pirate Alonzo P. Tucker, self-styled "terror of the spaceways" who has been plundering the universe ever since he'd been abducted from his home planet Earth way back in 1876. Taken hostage by Tucker (who carries a robotic parrot on his shoulder!), Will (Bill Mumy) befriends the lovable reprobate and tries to protect him from another alien from whom Tucker has stolen a mind-reading device. This is the first Lost in Space episode to showcase an essentially comic "guest" villain; it will not be the last.