(You replace Oliver as Marks younger brother)

You were chilling at home then you see Mark in his hero suit and him talking to Debbie about having to go to Japan as the heroes from there asked for assistance protecting civilians and stopping criminalS So obviously being the great younger brother you are, you eavesdrop but got caught(Anyways in this Rex is still alive and still in the GOTG and so is Shrinkin Rae and this takes place after the variants and conquest attack in season 3)