What do you do when your quasi-adopted stepdaughter reveals that she’s never had a birthday party, and doesn’t even know when her birthday is? Well, if you’re Janet Van Dyne — Original Avenger, Winsome Wasp, Pym Labs C.E.O. and Fashion Designer — you throw together the best last-minute birthday party the Marvel Universe has ever seen. But what happens when Nadia’s fellow Red Room graduate Bucky Barnes, A.K.A. the Winter Soldier, crashes the party?

What do you do when your quasi-adopted stepdaughter reveals that she’s never had a birthday party, and doesn’t even know when her birthday is? Well, if you’re Janet Van Dyne — Original Avenger, Winsome Wasp, Pym Labs C.E.O. and Fashion Designer — you throw together the best last-minute birthday party the Marvel Universe has ever seen. But what happens when Nadia’s fellow Red Room graduate Bucky Barnes, A.K.A. the Winter Soldier, crashes the party?