SNEAK PEEK: Marvel's Agents of S.H.I.E.L.D. - Episode 16 - End of the Beginning

Watch the first couple of minutes of tonight's Marvel's Agents of S.H.I.E.L.D. Episode 16: "End of the Beginning" on ABC.

Bill Paxton Guest Stars as Agent John Garrett

Episode Guide: "End of the Beginning - Agents Garrett (Bill Paxton) and Triplett are back to help Coulson's team track down S.H.I.E.L.D.'S nefarious enemy - the Clairvoyant. But will Deathlok destroy them all to protect his master's identity? "Marvel's Agents of S.H.I.E.L.D." airs TUESDAY, APRIL 1 (8:00-9:01 p.m., ET) on the ABC Television Network.