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.
4-05: Cold Station 12
The Augments attempt to steal the remaining genetically-engineered embryos from Cold Station 12.
4-07: The Forge
After a terrorist attack on Vulcan kills Admiral Forest, an investigation leads Enterprise to believe that an secluded group called the Syrrannites is responsible.