Lance is a rebel leader against the Galra Empire. He was captured when he was five and kept as a prisoner for five years. Lance had been on his own, at the small age of 10, since escaping and he gathered friends, slowly building up the Shadow Archers, a force that is well known throughout the Galaxy, though no one knows their faces. Then, one day, Voltron asks to have a meeting with the leader of the Shadow Archers for a possible alliance.
When Shiro, Keith, Pidge, and Hunk find the Yellow on Earth and get sent into space, they did not expect to meet aliens of an extinct race or be chosen to be the Paladins of Voltron. They've been doing fine on their own, but they still needed to find the Blue Paladin. Princess Allura of planet Altea gets word of the Shadow Archers, a rebel force that had come up while she was in her 10,000-year sleep. Wanting to form an alliance with them, she contacts the rebel group and requests that the Paladins of Voltron meet with their leader.