Tyson Chambers

Taylor Townsend manages to seize a night with Seth by throwing a Harbor School event that keeps Summer at a distance.

Summer, Seth and Ryan launch a mission-impossible campaign to get Marissa back into Harbor; Johnny struggles between a friend's happiness and his own feelings.

Taylor hits a high at the prom; Summer falls flat with her surprising prom date; Marissa convinces Volchok to attend the dance; the students elect one of the girls prom queen.

Lorelai and Christopher get into a fight over wedding plans. Meanwhile, when Logan discovers that Rory and Marty have been pretending that they just met, rather than admitting their previous friendship to Lucy, he reveals the truth to Lucy. Finally, Emily gives Lorelai a warning about her marriage.