ABC aired the first scenes from the "Marvel's Agents of S.H.I.E.L.D." season finale after tonight's episode and you can now check out the promo below. The season finale, titled "Beginning of the End" and airing on Tuesday, May 13, is described as follows:
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 (8:00-9:00 p.m., ET) on the ABC Television Network. "Beginning of the End" was written by Maurissa Tancharoen & Jed Whedon and directed by David Straiton.