As noted earlier today, ABC premiered a trailer for next fall's "Marvel's Agents of S.H.I.E.L.D." during tonight's season finale of "Once Upon a Time." Check it out in all its glory below:

"Marvel's Agents of S.H.I.E.L.D." is directed and co-written by Joss Whedon, along with "Dollhouse" veterans Jed Whedon and Maurissa Tancharoen as co-writers. Spinning out of events from "The Avengers" film, the show stars Clark Gregg who reprises his role as Agent Phil Coulson, and Marvel Universe newcomers Brett Dalton, Ming-Na-Wen, Iain De Caestecker, Elizabeth Henstridge and Chloe Bennet.