Plot summary
Coulson and May go undercover to a charity function to get a painting that is carved with alien symbols. There, they encounter Talbot, who has already claimed it and asks to meet with Coulson in private. Coulson sends May to scout ahead and she discovers the brainwashed S.H.I.E.L.D. Agent 33 in Talbot's hotel room, realizing that the Talbot at the party was actually Bakshi in disguise. Bakshi tortures May while Agent 33 disguises herself as May to pick up Coulson and sabotage the Bus. Coulson realizes that "May" is a fake because of inconsistencies in her behavior.
He rescues the real May, who defeats Agent 33, while Fitz and Hunter work together to save the Bus from Hydra's computer virus, allowing Fitz to start reintegrating into the team following previous life-changing injuries. Though Bakshi escapes, S.H.I.E.L.D. claims the painting, hiding its survival from the real Talbot. Raina is later confronted by Whitehall, who orders her to deliver the Obelisk to Hydra or face death.
Credits
Adapted from Wikipedia contributors, Agents of S.H.I.E.L.D. season 2. HTML formatting and reference markers removed.