T.r.a.c.k.s.

Previously on "Marvel's Agents of S.H.I.E.L.D."... - And an 0-8-4 is... ? - An object of unknown origin. Sky is the 0-8-4? And who do you work for, Raina? The Clairvoyant? The Clairvoyant...

Previously on "Marvel's Agents of S.H.I.E.L.D." - And an 0-8-4 is ? - An object of unknown origin. Sky is the 0-8-4? And who do you work for, Raina? The Clairvoyant? The Clairvoyant gives us...