Frankie Reeves keeps her life simple and compartmentalized: work as an ER nurse, care for her mom, search for the father she never knew. Gunnar Erickson just moved to Green Valley to train at Viking MMA with his brother Cage, determined to prove himself. When a freak accident lands him in Frankie's ER, he's instantly smitten — but Frankie pretends to be unfazed by the six-foot-three, two-hundred-thirty-pound "beef cake." Gunnar sets out to prove he's not the uneducated brute she assumes, and that she likes him more than she'll admit — even if, to Frankie, he's the worst kind of complication.