Agents of S.H.I.E.L.D. (season 6) The sixth 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 S.H.I.E.L.D. ... The sixth season premiered on ABC on May 10, 2019, and ran for 13 episodes until August 2.