Caroline plans a party for Elena's 18th birthday; Damon and Elena search for Stefan; Klaus and Stefan track a werewolf; Jeremy struggles with visions of ghosts.
Elliot Stabler returns to the NYPD to take on the city's most powerful organised crime syndicates and rebuild his life in the wake of a devastating personal loss.
Bell and Stabler welcome two new faces to the task force, and they investigate two seemingly unrelated crimes in hopes they'll be connected back to their case.
The team investigate a case of stolen nuclear waste and vehicular manslaughter while Pride is on administrative leave after the takedown of Mayor Hamilton.
Sharpe lands in hot water when she goes out on a limb for a patient; Max's grief comes to a head; Bloom takes a major step in her recovery.