Christopher Stapleton

House and the team treat a high-profile fitness trainer who collapses while shooting an infomercial, and Thirteen participates in a clinical trial led by Foreman.

The NCIS team are called in to investigate when a woman claims to have witnessed the murder of a sailor. With skimpy evidence to go on, Gibbs turns the case over to McGee, who believes the woman's story is enough to continue the case, but when physical evidence of a crime isn't there, McGee pushes the team to keep looking because he senses there's more to the woman's story than meets the eye.

Jack takes his fight directly to the President, as he attempts to force a confession from him that will prove his involvement in the day's events.

Jim fakes a jealous rage in a restaurant to make Cheryl feel more desirable. However, when Jim advises Dana's new boyfriend to do the same thing, Dana ends up thinking her new man is paranoid and obsessive.