Action Replay (An Overwatch fanfiction)

Black has been terrorising humanity for over a year, as a desperate measure to fight back Lance goes back in time to get the help from his father and mother Angela when overwatch was in its prime. Will he be able prevent his father from going down the dark path he is supposedly destined to go to? Will he able to save Mei and Winston? Is Zamas just a misguided pupil? May get mature.