With the recent victory at the Black Garden, Guardians in the Sol system celebrate. The Traveler is beginning to communicate with the Speaker and the Ghosts once more. And now there is a new desire from the Traveler: take the fight to the Darkness. With a squad of Ghosts chosen, they are sent to the outer reaches of the Sol system. None of them expected to find what they did.
(Crossover: My Little Pony: Friendship is Magic + Destiny (Year 1 and hints of Year 2 content))