One last mystery holds the key to saving the world on Salvation. "Get Ready" is the 13th episode of the show's second season.

A chain of events is set into motion on Salvation. "Hail Mary" is the 12th episode of the show's second season.

A stand-off leads to tragic results on Salvation. "Celebration Day" is the 11th episode of the show's second season.

Darius forms a dangerous alliance to put a stop to the dark money of Q17 on Salvation. "Prisoners" is the tenth episode of the show's second season.

A dark secret is about to be uncovered on Salvation. "The Manchurian Candidate" is the ninth episode of the show's second season.

Many are desperate to stop a nuclear standoff on Salvation. "Abre Sus Ojos" is the eighth episode of the show's second season.

Grace reveals one of her secrets on Salvation. "The Madness of King Tanz" is the seventh episode of the show's second season.

Grace and Darius' relationship is tested on Salvation. "Let the Chips Fall" is the sixth episode of the show's second season.

Harris works on facing down Bennett's forces on Salvation. "White House Down" is the fifth episode of the show's second season.

Grace begins a new and dangerous mission on Salvation. "Indivisible" is the fourth episode of the show's second season.

The nation is plunged into chaos on Salvation. "Crimes & Punishment" is the third episode of the show's second season.

Darius and Grace must reach an agreement on Salvation. "Detente" is the second episode of the show's second season.