ABC's "Marvel's Agents of S.H.I.E.L.D." - Season One [Getty Images]

MARVEL'S AGENTS OF S.H.I.E.L.D. - "Beginning of the End" - Dark secrets are revealed as Coulson and his team put everything on the line to stop Garrett and the forces of HYDRA, on the explosive season finale of "Marvel's Agents of S.H.I.E.L.D.," TUESDAY, MAY 13 (8:00-9:01 p.m., ET) on the Walt Disney Television via Getty Images Television Network. (Photo by Kelsey McNeal/Walt Disney Television via Getty Images)

Walt Disney Television Kelsey McNeal