F Troop is a satirical American television sitcom that originally aired for two seasons on ABC-TV. It debuted in the United States on September 14, 1965 and concluded its run on April 6, 1967 with a total of 65 episodes. The first season of 34 episodes was filmed in black-and-white, but the show switched to color for its second season.

Thelma Harper and her spinster sister Fran open their home to Thelma’s recently divorced son Vinton and his teenage son and daughter. It’s quite an adjustment for everyone, especially the cranky, argumentative Thelma.

A UFO is stranded on earth and impounded by the US government. Its pilot, a cat with a collar that gives it special powers, including the ability to communicate with humans, has eluded the authorities and seeks the help of a scientist in order to reclaim and repair his ship and get back home.