Maggie and Cal have weathered many ups and downs on Sullivan's Crossing, but they're about to face their biggest challenge yet after that surprise husband reveal. Based on the novel series by Robyn Carr, Sullivan's Crossing follows neurosurgeon Maggie (Morgan Kohan) as she finds herself in legal trouble and returns to her hometown in rural Nova Scotia to reconnect with her estranged father, Sully (Scott Patterson). The move allows Maggie to have a meet-cute with Sully's neighbor - and her eventual love interest - Cal (Chad Michael Murray).