Prologue: Is This Possible?

**Set for an ideal Season 5 of Supergirl
Mon-El decides, after a few months it was time for a surprise visit to National City. Except when Mon-El and Winn come back, things are not the same as when they left. Mon-El realizes that his decision to go back to the future affected all of his friends. Kara is missing and unfortunately much was left behind that he must fix.
F.Y.I. Do not own Supergirl. Just the new characters and the plot.