The team has been assembled, the die cast. But who is this girl they find in the center of a crater? Who are these men in black? And who's that lurking in the background? Multicrossover with Assassin's Creed and Blackwatch skulking around somewhere Canon pairings

After Ultron's defeat the Next Avengers come back. Hawkeye tells them of other heoes. After meeting the new Justice League they find out something big. Will they all be friends or foes? How powerful are these new heroes?