Buck Rogers in the 25th Century - Season 1 - Eps 20: A Dream of Jennifer
Buck is haunted by the appearance of a young woman who bears a striking resemblance to Jennifer, a woman who Buck left behind when he was propelled into the 25th Century. He follows her, finds out her name is Leila Markeson, and soon discovers that she was made to look like Jennifer in order to lure Buck into a trap set by an alien who wants Buck to stop a space freighter from delivering weapons to a planet his people hope to conquer. Buck gets Wilma to detonate a warhead to deceive the aliens into thinking the shipment is destroyed. Buck defeats the enemy, but loses Leila, and his lost love again, as she tearfully dies in his arms.
About Buck Rogers in the 25th Century

Title: Buck Rogers in the 25th Century
First Air Date: 1979-09-20
Last Air Date: 1981-04-16
Status: Ended
Rating: 7.004/10 (from 114 votes)
Language: EN
Seasons: 3
Total Episodes: 37
Network: NBC
Genres: Action & Adventure, Sci-Fi & Fantasy
Production Companies: Universal Television, Glen A. Larson Productions, Bruce Lansbury Productions, John Mantley Productions
Synopsis
20th-century astronaut Buck Rogers awakens in the 25th century after a freak accident puts him in suspended animation for 500 years. Upon returning to Earth and discovering the planet is recovering from a nuclear war, Buck uses his combat skills and ingenuity to protect Earth and fight evil throughout the galaxy alongside starfighter pilot Colonel Wilma Deering and robot companion Twiki.
Cast

Gil Gerard
Buck Rogers

Erin Gray
Wilma Deering

Wilfrid Hyde-White
Dr. Goodfellow

Thom Christopher
Hawk

Jay Garner
Admiral Efram Asimov

Felix Silla
Twiki