Archer recruits Dr. Arik Soong from prison to track down a genetically-engineered group of radicals, whom he raised as children.
Phlox is abducted by Klingons and forced to find a cure to a fast-spreading illness. Meanwhile, Section 31 reaches out to Reed.
4-19: In a Mirror, Darkly, Part II
A power-struggle ensues for control of the U.S.S Defiant in the mirror universe.