"A Trout in the Milk" is the fifth episode of the seventh 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 a Life Model Decoy of Phil Coulson and his team of S.H.I.E.L.D. agents as they race to stop the Chronicoms from unraveling history in the 1970s. It is set in the Marvel Cinematic Universe (MCU) and acknowledges the franchise's films. The episode was written by Iden Bagdadchi and directed by Stan Brooks.

The seventh and final season of the American television series Agents of S.H.I.E.L.D., based on the Marvel Comics spy organization S.H.I.E.L.D., follows S.H.I.E.L.D. agents and allies as they try to prevent an alien occupation while stranded in time. It is set in the Marvel Cinematic Universe (MCU) and acknowledges the continuity of the franchise's films. The season was produced by ABC Studios, Marvel Television, and Mutant Enemy Productions, with Jed Whedon, Maurissa Tancharoen, and Jeffrey Bell serving as showrunners.