The Walton children learn that it is not easy having their mother as a substitute teacher, and John-Boy rediscovers a former girlfriend.
A daring jailbreak reunites a family of vicious outlaws who wound a pursuing U.S. marshal, kid his deputy, then wait in ambush for the injured lawman and Marshal Dillon.
Fleeing from both Matt Dillon and his double-crossed partners, outlaw Gristy Calhoun discovers that his survival in the badlands depends on an Indian woman.
Quaid plants a robot on a nuclear submarine and it is up to Moore and Oppenheimer to deactivate it.