GILLIGAN'S ISLAND in the Old West starring Bob Denver! Just as the castaways spent every episode trying to get off the island, in DUSTY'S TRAIL they struggle to find their way out of the wilderness on the Oregon Trail.
THEN THERE WERE SEVEN: Andy and Betsy are tricked into giving medical aid to a wounded outlaw, which results in the entire group being held hostage while they try to surgically remove a bullet.