The Augment Crisis was term given to a series of events in May 2154 in which both the Klingon Empire and United Earth due to the actions of several augments. (ENT episodes: "Borderland", "Cold Station 12", "The Augments", "Affliction")
Following the end of the Eugenics Wars, thousands augment embryos were placed cryogenic suspension in secret by Earth's governments. By the the 22nd century, the embryos were then taken to Cold Station 12. In the 2130s, the station's chief of staff, Dr. Arik Soong, then stole several of the embryos and made his escape to Trialas IV. There, Soong raised the augments as his own children.
The Klingon ThreatEdit
In May 2154, two of Soong's augments, Malik and Saul then boarded Klingon bird-of-prey in the Borderland and killed its entire crew. After dumping the crew's bodies, the rest of augments joined Malik aboard the bird-of-prey. Malik then killed Raakin and took over the augments. (ENT episode: "Borderland")
After the Klingons recovered the bodies and found human DNA on them, Chancellor M'Rek threatened to retaliate against Earth. However, Starfleet discovered that the DNA belonged to augments and sent the Enterprise (NX-01) under Captain Jonathan Archer to track them.
Mission into the BorderlandEdit
Archer then met with Dr. Soong and took him from his prison to help in his search for the augments. The Enterprise, following it's refit, then went into the Borderland. Once there, the Enterprise came under attack by a pair of Orion interceptors, who took several of the crew as slaves. With Dr. Soong's help, Archer was able to rescue his captured crewmen from Verex III's slave processing center. Unfortunately, Soong tried to make his escape and contact the augments. Archer was then able to recapture him.
As the Enterprise, several Orion interceptors attacked the ship. However, the augments' bird-of-prey drove them off. When Malik spoke with Archer, he then took him hostage while the other augments freed Soong from the brig and returned to the bird-of-prey.