Lost in Space Season 3 Episode 8 Flight into the Future

Will and the Robot are checking the pod for readiness when Dr. Smith enters, determined to get a back massage from the Robot. He accidentally launches the pod, which lands on a strange jungle-covered world where fruit explodes and invisible birds cast shadows. The Jupiter 2 lands nearby, but can't find the jungle - they see only rock! Then Will meets people who claim it is 2270 and they are the descendants of the Robinsons! To reach his family, Will will have to figure out what, exactly, is going on.