It's the 29th Century and 94 percent of the galaxy has been explored and conquered. The Starship Lionheart, along with other massive space vessels, travels through time continuums and parallel universes. June 2853: The Starship Lionheart enters a parallel universe and fights the Grey Empire. Shortly after, the entire crew is blown out of that universe and into our present one, after destroying their foe. Captain Bontrk, who is a 820 year-old Mudisan and veteran of the S'Phere War, commands the Starship. Along with his first officer John MacLeod and seasoned crew at the helm, the vessel sets out on another mission. Discovering a space station in orbit around a second Earth, the Lionheart will embark on a perilous journey that will nearly take their lives and prove to be a battle to the death. Who will win power over the galaxy and what old enemies will Bontrk and MacLeod face during their mission?