This article or section contains information from the optional Colonist Missions in StarCraft II: Wings of Liberty.
The Evacuation of Agria
The Colonist Missions consist of Raynor's Raiders attempting to protect the colonists of Agria, which had been abandoned by the Dominion. After the evacuation, Doctor Ariel Hanson joined the Raiders. Hanson developed romantic feelings towards Raynor over the course of her stay, but Raynor didn't immediately notice.
That new world turned out to be Haven, a planet on the edge of protoss space. Suddenly, all communications were cut off, and upon arrival, the Raiders discovered why – a protoss force under Executor Selendis had arrived, knowing that the colonists were infected. Hanson however, maintained that she was close to finding a cure for the virus and both Hanson and Selendis vied for Raynor's allegiance.
Raynor decided to aid the colonists and fended off the protoss. He was able to defeat the purifier mothership which was going to destroy the planet, thus accomplishing his goal: the protoss retreated. Afterward, Hanson decided to stay on Haven to help her people. She tentatively offered Raynor a new life on the world, but Raynor maintained that he had to finish what he'd started – his revolution against Arcturus Mengsk. Hanson revealed her affections, but accepted Raynor's decision.
Raynor decided that the infestation had to be burned and took the protoss' stead. Hanson was outraged, believing she was very close to finding a cure, and locked herself in Hyperion's lab. The Raiders destroyed the infestation. Afterward, Raynor entered the lab fully armed to discover Hanson was infested. Ordering Matt Horner to seal the exits, Raynor was attacked by a 99.3% infested Hanson. Raynor was forced to kill her.