Rigo Sanchez

Ryan, Marissa, Seth and Summer are back to begin their senior year at The Harbor School, but while everyone else celebrates the last days of summer, a dark cloud hangs over the foursome.

The team boards an aircraft carrier to find out how a sailor with no history of drug abuse overdosed on methamphetamines. When a second sailor overdoses, Gibbs becomes convinced someone is doping sailors without their knowledge.

A recent gang shooting reconnects Rush to her first homicide case. The latest victim is the brother of the first murder victim whose case Rush worked. The mother of the victims has lost four out of five sons to gang violence and Rush is determined to stop the cycle.

With the family settled in Ren Mar, Nancy turns her attention back to business and receives a crash course in `running' the border from Guillermo.

Nancy makes her first successful run; Capt. Till strikes a deal with Celia; Andy tries to convince the family to put Bubbie out of her misery.

Guillermo gives Nancy a new job and she soon finds working retail isn't as mundane as it appears on the surface. Celia's deal with Captain Till brings her dangerously close to the action.