Who's Your Daddy?

Duncan's reputation could block a huge deal for Reveal, so he enlists Cameron to help him appear like a perfect father; James tries to patch up hard feelings between his girlfriend and Katie as he wrestles with telling Katie the truth about her boyfriend; Brody's father-in-law pays the guys a visit and rubs them all the wrong way; Karl struggles with Wendy's wanting him to sleep with Marla, his ex-mistress, so they can have a baby; and Cameron tries to deal with Zack's shocking news.