Marvel's Agents of S.H.I.E.L.D.

Season 2, Episode 21

Episode Title: S.O.S. (1)

Air Date: 2015-05-12

Overview:

S.H.I.E.L.D. puts everything on the line to survive a war that blurs the line between friend and foe. Coulson and his team will be forced to make shocking sacrifices that will leave their relationships and their world changed forever.