In the season three finale, one of the "Agents of S.H.I.E.L.D." will die. Since the show returned from its winter hiatus, it's been no secret that the series is gearing up to reveal the identity of the Fallen Agent, who will make the ultimate sacrifice in the line of duty.

Fallen Agent: Who Will Lose "Agents of SHIELD's" Dead Pool?

However, there have been few clues about the identity of said Fallen Agent, which means it could truly be any member of Director Coulson's team: May, Daisy, Fitz, Simmons, Lincoln, Mack, Yo-Yo, Joey or even Coulson himself. To make matters even vaguer, Marvel Entertainment has released a series of videos that memorializes each and every one of them, in preparation for tonight's big reveal.

"Absolution"/"Ascension" -- It's a showdown a season in the making as S.H.I.E.L.D. takes on Hive, and when his master plan is finally revealed, the team must spring into action. Who will live, and who will die? Things heat up in the exciting two-hour season finale of "Marvel's Agents of S.H.I.E.L.D.," TUESDAY, MAY 17

Starring Clark Gregg, Chloe Bennet and Ming-Na Wen, "Marvel's Agents of S.H.I.E.L.D." airs at 9 pm EST on ABC.