A woman from Luke's past comes back to Stars Hollow, and tells Luke that she is here to stay. Rory misses Friday night dinner to go on a three month anniversary date with Dean. At Friday night dinner, Emily tries to set Lorelai up with a family friend, much to Lorelai's disgust. Meanwhile, Dean surprises Rory with a fancy dinner, then shows her a car that he's building for her. But the night takes an unexpected turn when Dean tells Rory he loves her and Rory doesn't answer him back.

Kucha and Ogakor receive tree mail at their camps - the tribes are merging, and as a pre-merge twist, the women are all meeting together at Ogakor camp and the men are all converging at Kucha camp. With everyone ready to move full-time into the Kucha territory, all are surprised to learn that they will be living in a new section of the Outback, and that they will have to create a new shelter, and adapt to their new surroundings. Despite some merging festivities, where the castaways become Barramundi and receive a big picnic basket full of elaborate platters, the tribal lines run deep as former tribemates strategize the best way to pick off each member of the opposing tribe. The Immunity challenge lures Keith into a strong sense of safety when he withstands an endurance competition longer than anyone else, who all settle for temptations. At Tribal Council, it comes down to a nail-biting tie between Jeff and Colby - but Jeff, who has already received at least one vote in a previous tribal council, is sent home, just missing a spot on the jury.

A body is found in a pottery store in what's apparently a robbery that was interrupted. Fingerprints at the scene seem to match a twenty year old kidnapping case. Sara and Warrick look into a case where a woman burned to death in her home. The woman was burned to an ash but only the chair she was in was burned, the rest of the house is fine. Sara believes they have a case of spontaneous combustion.

Tonight, actor Javier Bardem.

Mike and Tim are through to the quarter finals of Robot Wars, but trouble is brewing as a rival team who didn't get through decide to sabotage their efforts. Meanwhile, Brian is invited to do an installation at an art gallery, and Marsha goes along to offer support and enjoy the free booze.