The Nevengers while trying to escape hell (with some help from Milah?)…probably…

Killian: From now on we’ll be using code names. You can address me as Eagle One. Milah, code name: Been there, Done that. Emma is – Currently Doing That. Regina is – It Happened Once in a Dream. Charming/Dave – If I Had to Pick a Dude. Rumple is – Eagle Two.
Rumple: Oh thank God.