Plot summary
After the Bus is hijacked, Garrett's jet is attacked by S.H.I.E.L.D. drones and he rejoins the team. At the Hub, Simmons and Triplett begin working together to secretly upload her research on Skye's blood, only for a Hydra assault on all S.H.I.E.L.D. facilities to force them into hiding. Coulson locks May in the interrogation room with Ward, still believing she is the traitor. Skye discovers a secret code in a signal on S.H.I.E.L.D.'s network that she deciphers to reveal Hydra's infiltration.
When the Bus arrives at the Hub, the group splits into teams to capture Hand. However, Hand reveals that she is not a member of Hydra, but believes that Coulson is, recruiting Triplett and Simmons to aid her in stopping them. Garrett accidentally discloses information that reveals himself as the true Clairvoyant and is captured by Coulson and May. Ward accompanies Hand to the Fridge so he can see to Garrett's imprisonment personally, but shortly reveals his own allegiance to Hydra by killing Hand and freeing Garrett.
Credits
Adapted from Wikipedia contributors, Agents of S.H.I.E.L.D. season 1. HTML formatting and reference markers removed.