Larissa Laskin

The Enterprise crew makes first contact with the Vissians, a species with three genders. When Trip meets one of the species' third gender, known as Cogenitor, he is disturbed to learn that all cogenitors are treated extremely poorly.

Grissom and Catherine investigate the stabbing death of an 80-year-old woman who lived in a run-down house full of cats.

Harm is held captive by a renegade government agent who plans to assassinate a key witness in an upcoming trial.

Nancy and Silas start their new, legit and highly competitive jobs. After graduating from the police academy, Shane gets an assignment. Andy seeks employment at the local Jewish temple. Meanwhile, Doug's reckless spending comes to a complete halt.

The team members search for a pregnant, HIV-positive woman, Megan, who vanished moments after she and her husband saw the ultrasound of their healthy late-term fetus. They remain wary of Megan's husband, Brian, who allegedly left for a business trip after the ultrasound. Their suspicions are heightened when they learn that he had a brief affair last year after Megan was diagnosed with HIV, which she contracted during a previous relationship. But the investigators also find out that a blood technician had chastised Megan for putting her child at risk by becoming pregnant. They also probe whether or not Megan's disappearance is connected to an attempted infant abduction at the same hospital three weeks prior, and they look into the relevance of her last incoming cell phone call from a detention center.