The two-hour Season 2 finale of Marvel’s Agents of S.H.I.E.L.D. will air tonight on ABC starting at 9 p.m ET/8 p.m. Central. In the final two episodes, titled “S.O.S. Part 1” and “S.O.S. Part 1,” the Inhumans want Skye (Chloe Bennet) to fight against S.H.I.E.L.D., and the team puts everything on the line to survive a war in which it’s hard to tell who is friend and who is foe. Marvel’s Agents of S.H.I.E.L.D. will be broadcast on traditional television, as well as the Watch ABC app and on abc.go.com, both of which require authentication with a service provider subscription to stream live TV.