Sullivan's Crossing won over Netflix viewers with stories of love, loss and loyalty in a small town - but how does the TV adaptation compare to the original book? Based on Robyn Carr's book series of the same name, 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).