kiss her, then slaps him (which knocks him out) when her target sees them together. Sarah is cold to him, and she and Casey angrily tell Chuck to leave. While leaving, Casey does mention they are meeting a Ring courier named Javier Cruz, which Chuck flashes on and realizes the man is not a mere courier but an assassin. Casey and Sarah leave and have Chuck removed before he can warn them so Chuck tries to break back in anyway, and when his attempts to break down the door fails, he flashes on kung fu just as a mariachi guitarist arrives. He inadvertently kicks the man when he surprises him and knocks him out. Chuck takes advantage of the man's clothing and guitar to regain entry, but before he can find Casey, is forced on stage. Casey and Sarah see him, but Sarah tells Casey not to tranquilize him, giving him a chance to flash on the guitar and instantly learning to play. He is able to warn Casey about the assassin and begins scanning the club hoping to flash on him. Outside, the mariachi player wakes him and removes his disguise, revealing that he is the assassin, Javier. He makes his way inside and aims through the door at Sarah and her date. Chuck sees his laser sight on Sarah and jumps off stage to knock her out of the way. The assassin flees and finds Chuck's Nerd Herd badge while Chuck is hauled off for ruining the operation. Chuck returns to the living room couch and tells Devon he's been fired by the government, and his behavior is not just a cover. Morgan arrives again and takes Chuck to the Buy More in an effort to cheer him up, by revealing his own plans have fallen apart. He failed as a Benihana chef, Anna left him for a classmate, and he now lives in the Buy More. Sarah arrives at the store to say goodbye, while he tries to explain himself. While they talk, Javier arrives in search of Chuck. Emmett confronts him by the loading dock and tells him Chuck no longer works there. As Javier turns to leave, Emmett, making a fatal mistake, insults the assassin, who turns around and shoots him in the head. His men break into the store and capture Chuck and Sarah. In Castle, Casey is supervising the last of the cleanup