The BAU is called to Los Angeles to investigate a series of killings that lead to a Goth rock star who appears to have become lost in the creepy alter-ego he portrays when he is on stage.

When McGarrett is kidnapped by Wo Fat, he experiences what would have happened to the team if they had taken a very different path. William Sadler returns as McGarrett's father, and musician Gavin Rossdale guest stars as the nefarious Johnny Moreau.

Michael and Jesse go on an extraction mission on a Caribbean island but end up trapped there by mercenaries. Meanwhile, Fiona tries to get information out of an ex by doing a favor for him.

After a wild night, it is back to the kitchen, where the chefs learn that influence can make or break their future when they prepare to impress Chef Ramsey’s 100 million social media followers in the presentation challenge. During dinner service, the chefs attempt to impress guests with renowned influence including, actors Kate Flannery, Mary Lynn Rajskub, singer Gavin Rossdale and RuPaul’s Drag Race winner Bob the Drag Queen. After many mistakes on each station, Gordon makes a shocking decision.