From NBC:

Christopher Meloni, reprising his role as Elliot Stabler, returns to the NYPD to battle organized crime after a devastating personal loss.

However, the city and police department have changed dramatically in the decade he's been away and he must adapt to a criminal justice system in the midst of its own moment of reckoning.

Stabler will aim to find absolution and rebuild his life while leading a new elite task force that is taking apart the city's most powerful criminal syndicates one by one.