"Shadows" is the first episode of the second season of the American television series Agents of S.H.I.E.L.D. Based on the Marvel Comics organization S.H.I.E.L.D., it follows Phil Coulson and his team of S.H.I.E.L.D. agents as they fight Hydra for a powerful artifact in the possession of the U.S. military. It is set in the Marvel Cinematic Universe (MCU) and acknowledges the franchise's films. The episode was written by Jed Whedon and Maurissa Tancharoen, and was directed by Vincent Misiano.

The second season of the American television series Agents of S.H.I.E.L.D., based on the Marvel Comics organization S.H.I.E.L.D., follows Phil Coulson and his team of S.H.I.E.L.D. agents and allies as they attempt to rebuild the organization after it was revealed to have been infiltrated by Hydra in the film Captain America: The Winter Soldier (2014). The season is set in the Marvel Cinematic Universe (MCU) and acknowledges the continuity of the franchise's films and other television series. It was produced by ABC Studios, Marvel Television, and Mutant Enemy Productions, with Jed Whedon, Maurissa Tancharoen, and Jeffrey Bell serving as showrunners.