Galactica 1980 is a science-fiction television series, and a spin-off from the 1978-1979 series Battlestar Galactica. It was first broadcast on the ABC network in the United States from January 27, 1980 to May 4, 1980.

Set during the year 1980, and a generation after the original series, the Galactica and its fleet of 220 civilian ships have finally discovered Earth, only to find that the planet cannot defend itself against the Cylons as originally hoped. Therefore, teams of Colonial warriors are covertly sent to the planet to work incognito with various members of the scientific community, hoping to advance Earth's technology.

Commander Adama and Colonel Boomer—now second-in-command in place of Colonel Tigh— on the advice of a mysterious teenager named Doctor Zee who serves as Adama's advisor, sends Captain "Boxey" Troy, who is the adopted son of Adama's own son Apollo, and Lt. Dillon to North America, where they become entangled with TV journalist Jamie Hamilton. After an initial, epic time travel adventure to Nazi Germany in the 1940s (to stop a rebel Galactican trying to change the future to improve's Earth technology level), the three friends devise ways to help Earth's scientists and outwit the Cylons in the present day. Meanwhile, Adama sends a group of children from the Galactica fleet to Earth in order to begin the process of integrating with the population; due to differences in gravity and physiology, however, the children also have to learn to deal with the fact they have near-superhuman powers on Earth.

The fate of several characters from the original series are indicated during the course of the series. Apollo is apparently dead (cause unknown), Starbuck's fate (marooned on a deserted planet) would be revealed at the end of the series, Boxey is revealed to be Captain Troy, and Lt. Boomer is now Adama's second in command. The fate of several other characters - Adama's daughter Athena, Colonel Tigh, Starbuck's girlfriend Cassiopeia, and the evil Count Baltar - are not revealed, and all four characters are absent from the series.

- From Wikipedia