Sean Haberle

Alicia represents an undocumented immigrant who must testify against a member of a drugs cartel or face deportation to Mexico, where there is a contract out on his life.

Carrie's on-off relationship with Big is officially back on, while Charlotte makes friends with a group of 'power lesbians'.

The investigation into the death of a sex offender who was harassed by local police becomes more complicated after sources in the NYPD and the DA's office suggest, contrary to the evidence, that it may be the act of a serial killer.

After Danielle Masoner dies in Central Park, Stabler follows the leads to a homeless man who turns out to be a better witness than he thought. Paired up again with Benson, Stabler investigates her death, but it keeps bringing up memories of Dani Beck for him. During the course of the investigation, Benson and Stabler learn that Danielle's husband was sleeping with a friend of theirs.