CIA agent Tara Croydon rushes to the hospital to see her dying dad. But when her job - being a ruthless secret agent - calls for immediate action, Tara must decide which comes first: fighting terrorists or being there for her dad.
Tara commits to an experimental procedure in which the CIA turns her into a genetically modified agent known as SHIFTER. Tara must now train with her new abilities, but she finds out something disturbing deep inside of herself.
Maeve Randall is in Tbilisi, Georgia for a wedding. When she is kidnapped by Russian agents and accused of breaking into the embassy, Maeve is helpless. But where is Shifter and can she save Maeve in time?
When the United States decides to engage in conflict with North Korea, American Diplomat Seojoon Song takes the act personally. Shifter is sent in to guard Song and make sure nothing happens to him at an American-North Korean joint event.