The story follows the intersecting love lives of a bunch of LA folks. Dempsey will again be playing a doctor, this time "a married obstetrician dating Garner's character on the sly, with her unaware of his status."
Meanwhile, "Dane will play a quarterback struggling over the decision of whether to retire." Interestingly, though there's no mention of it in today's news piece, the role of the football player has previously been described as a closeted gay character with whom Bradley Cooper's character is in love. I think Cooper and Dane make a pretty cute couple, actually.