Agents of S.H.I.E.L.D. web series are four web series related to Agents of S.H.I.E.L.D. that aired concurrently with the series between 2013 and 2016. The first series Agents of S.H.I.E.L.D.: Declassified, is a companion series for the first season that recapped and gave behind the scenes information on the week's episode. Agents of S.H.I.E.L.D.: Double Agent follows a newly hired Agents of S.H.I.E.L.D. production assistant, who acts as a double agent for the "Mastermind". Agents of S.H.I.E.L.D.: Academy is a competition show in which three fans competed in different challenges related to the TV series in order to win an appearance on its third season. Agents of S.H.I.E.L.D.: Slingshot is an in-universe series that followed Elena "Yo-Yo" Rodriguez on a mission before the events of the fourth season of Agents of S.H.I.E.L.D.