Turn, Turn, Turn

Turn, Turn, Turn is the seventeenth episode of the television series Agents of S.H.I.E.L.D..

Synopsis
Coulson and his team find themselves without anyone they can trust, only to discover that they are trapped with a traitor in their midst.

Plot
John Garrett's jet was attacked by S.H.I.E.L.D. drones after the Bus was hijacked, after escaping the drones with the aid of Coulson's Team, he docked with the Bus and joined the team. At the Hub, Jemma Simmons and Antoine Triplett began working together to secretly upload Simmons's research on Skye's blood, only for a HYDRA assault on all S.H.I.E.L.D. facilities to begin, forcing them into hiding.

Phil Coulson locked Melinda May up in the interrogation room with Grant Ward, still believing she was the traitor. Skye discovered a secret code in a signal on S.H.I.E.L.D.'s network that she deciphered to reveal HYDRA's infiltration.

When the Bus arrived at the Hub, the group split into teams to capture Victoria Hand, who they believed to be the Clairvoyant, and save Simmons. Simmons and Triplett were captured by Hand, but she revealed that she was not actually part of HYDRA but believed that Coulson was, and recruited the two to aid her in stopping HYDRA.

Coulson, May, Garrett, and Leo Fitz managed to capture a computer room in the Hub, but while talking with Coulson, Garrett began urging him to kill Hand without a trial and accidentally revealed information about Raina that Coulson never disclosed to anyone, unwittingly outing himself as the true Clairvoyant.

In the ensuing battle, Coulson and May managed to kill the HYDRA agents and capture Garrett. The Hub was retaken and Captain America defeated HYDRA's trio of armed Helicarriers, but Nick Fury was presumed dead in the aftermath and the remaining S.H.I.E.L.D. agents were forced to go on the run.

Ward volunteered to accompany Hand to the Fridge so he could see to Garrett's imprisonment personally. However in transit, Hand offered Ward the chance to execute Garrett to atone for killing Thomas Nash by mistake. He at first appeared to accept the offer, but then instead gunned down Hand, Jacobson and Chaimson, freeing Garrett and revealing himself as a HYDRA agent.

Cast
Main Cast:
 * Clark Gregg as Agent Phil Coulson
 * Ming-Na Wen as Agent Melinda May
 * Brett Dalton as Agent Grant Ward
 * Chloe Bennet as Agent Skye
 * Iain De Caestecker as Agent Leo Fitz
 * Elizabeth Henstridge as Agent Jemma Simmons

Guest Stars:
 * Bill Paxton as Agent John Garrett
 * Saffron Burrows as Agent Victoria Hand
 * B.J. Britt as Agent Antoine Triplett
 * Christine Adams as Agent Anne Weaver
 * Dayo Ade as Agent Barbour
 * James Macdonald as Agent Jacobson
 * Charles Halford as Agent Shaw
 * Kylie Furneaux as Agent Shade
 * Braden Moran as Agent Jones
 * Cameron Diskin as Agent Baylin
 * Alex Daniels as Agent Chaimson (uncredited)

Locations

 * The Hub
 * S.H.I.E.L.D. Academy
 * The Triskelion (mentioned)
 * S.H.I.E.L.D. East African Headquarters (mentioned)
 * The Treehouse (mentioned)
 * The Fridge (mentioned)
 * The Ice Box (mentioned)
 * Lisbon, Portugal (mentioned)
 * Bahrain (mentioned)
 * Dublin, Ireland (mentioned)

Events

 * World War II (mentioned)
 * S.H.I.E.L.D. Civil War
 * Battle at the Hub
 * Battle at the Triskelion (mentioned)

Items

 * I.C.E.R.
 * Holocom
 * Holo-Box
 * Overkill Device
 * Coulson's Team Hard Drive
 * Pick-Lock Device
 * Mouse Hole
 * Bulletproof Vest
 * Thunderstick
 * GH.325 (mentioned)
 * Peruvian 0-8-4 (mentioned)
 * Berserker Staff (mentioned)
 * Atmospheric Moisture Freezing Device (mentioned)
 * Gravitonium (mentioned)
 * Backscatter X-Ray Eye Implant (mentioned)
 * Theta Brain-Wave Frequency Machine (mentioned)
 * (mentioned)

Vehicles

 * The Bus
 * The Cage
 * Lola
 * S.H.I.E.L.D. SUV
 * S.H.I.E.L.D. Jump Jet
 * S.H.I.E.L.D. UAV
 * Helicarrier (mentioned)

Organizations

 * S.H.I.E.L.D.
 * HYDRA

Mentioned

 * Nick Fury
 * The Clairvoyant
 * Felix Blake
 * Thomas Nash
 * Franklin Hall
 * Akela Amador
 * Dan Monroe
 * Deathlok
 * Raina
 * Ian Quinn
 * Jasper Sitwell
 * Captain America
 * Project T.A.H.I.T.I.

Trivia

 * This episode is a direct tie-in with Captain America: The Winter Soldier.
 * The song played at the beginning of the episode is "(Don't Fear) The Reaper" by Blue Öyster Cult.
 * This the first episode to end with the HYDRA insignia rather than S.H.I.E.L.D.'s.