Best Medicine begins in the aftermath of Josh Segarra's onscreen split from Abigail Spencer, setting the scene for Mark's "hot guy summer." "I think Mark is looking in the mirror every morning telling himself, 'Let's go, hot guy summer,'" Segarra, 39, quipped during an exclusive interview with Us Weekly. "There's a very fun reveal where I think all the available women in town are lining up [to date him]. I believe he is trying his best to get over the love of his life." Segarra teased that it wouldn't be easy, adding, "Off we go. We're in the casual phase to make sense of the heartbreak.