CTV's Sullivan's Crossing has returned for season 4 after a shocking cast exit - and a secret husband plot twist - but when can fans watch the show on The CW and Netflix? Based on a book series by Robyn Carr, Sullivan's Crossing follows neurosurgeon Maggie (Morgan Kohan) as she returns to her hometown in rural Nova Scotia. Throughout the seasons, viewers have been introduced to her estranged father, Sully (Scott Patterson), newcomer Cal (Chad Michael Murray) and more members of the community. Sullivan's Crossing was renewed for a fourth season, which premiered March 22, 2026, on CTV.