When the brilliant scientist, Dr. Franklin Hall, is kidnapped, Agent Coulson and his S.H.I.E.L.D. agents must race against the clock to locate him. Skye is their only way in–pushing the team to their limits when the entire plan turns upside-down.

Coulson and May uncover startling information about Skye's past, while the team is swept into a storm at a S.H.I.E.L.D. Academy of Science and Technology.

Hot on the trail of The Clairvoyant, Coulson and his team board a mystery train that seems to be headed for certain death.

Coulson goes on the attack to save Skye by enlisting the aid of Ward's former S.O. John Garrett and uncovers shocking truths about his own life and S.H.I.E.L.D.

With Colonel Glenn Talbot now on their trail, Coulson and his team seek refuge in the last place anyone would look, where they begin to uncover S.H.I.E.L.D.'s most dangerous secrets. Secrets that could destroy them all.

Ward's betrayal and HYDRA's shocking secrets are revealed as Coulson's team goes undercover on a mission that leaves no one unscathed.

Dark secrets are revealed as Coulson and his team put everything on the line to stop Garrett and the forces of HYDRA.

Coulson is forced to team up with surprising allies to save the world, while the S.H.I.E.L.D. team attempts to track down and rescue him.