Ryan O'Quinn

Sydney begins to question where Vaughn's allegiances lie when she learns through CIA Agent Yeager that he is under investigation by the Agency. Meanwhile Irina and a crucial Rambaldi manuscript are used as bait to try to catch Sloane, and Sydney welcomes Dixon to the CIA.

Shelly's successful, Ivy League-educated sister, Simone (QUEEN LATIFAH - "Barbershop 2," "Chicago"), comes for a visit, and Shelly frustratingly finds herself slipping back in the role of overshadowed little sister, especially after becoming Simone's backup singer during their karaoke rendition of The Supremes' "Come See About Me." Meanwhile, since Marty's duped Janie into believing that he's a "Mr. Fix-It," he recruits J.T. and the guys to help build a brick barbecue for Simone's welcome party even though they have no idea how to do it.