Carrie and Al’s latest case – the murder of an Afghani cab driver – has the potential to turn into a matter of national security when it’s discovered that the victim was a government informant.

Carrie and Al investigate when a championship boxer appears to have been beaten to death without making an effort to defend himself.

Carrie is unable to utilize her perfect memory when an assassin doses her with a deadly poison that attacks her brain, leaving Al on a desperate hunt for the antidote.

Eddie Martin, Carrie's long-lost husband, pays a visit to Major Crimes while investigating a meth crew that is involved in something more nefarious than dealing drugs.

The killing of a young jazz prodigy leads Carrie and the team into the halls of a competitive music conservatory and the underbelly of the city's jazz club scene.

When a shooter on the loose triggers a flashback that doesn't add up with Carrie's perfect memory, the team at Major Crimes discovers that a nefarious conspiracy is at play and trained killers are among them.