Eddie Shin

When Amy doesn’t have time to work on super-asymmetry, Sheldon goes to great lengths to ensure she’s available to work with him even if it means accidentally sabotaging her career in the process. Meanwhile, Raj doesn’t want Howard to join him in hosting a show at the planetarium. BOB NEWHART returns as Arthur Jeffries.

When investigating an Irish mobster's death, Beckett and Castle uncover a local turf war that may be connected to an infomercial guru and an international drug-smuggling operation; evidence causes the case to become personal for Beckett.

Greg is delighted to finally have made a friend in Westport, fellow history buff Stan, but Katie isn't as happy, since Stan is married to her nemesis, Chloe Brown Mueller.

Dean ends his and Rory's relationship on the night of their third anniversary. Refusing to indulge in self-pity, Rory attends a party and finds her classmate Tristin, who just lost his girlfriend. When Tristin kisses Rory, she finally admits to herself how confused and miserable she is. Meanwhile, Lorelai visits Max, and the two can't resist making love.

When Rory and her classmate Tristan (recurring guest star Chad Michael Murray) are cast as Romeo and Juliet in a school play, a jealous Dean insists on attending every rehearsal, forcing Rory to beg Tristan not to tell Dean about the time she and Tristan kissed. Meanwhile, Lorelai has to endure Luke's teasing after she dates a much younger guy.