Sullivan’s Crossing is coming back with a major love triangle as Maggie finds her genuinely torn between boyfriend Cal — and secret husband Liam.
The CW shared a teaser for season 4 on Wednesday, February 25, which showed Maggie (Morgan Kohan) having to explain to Cal (Chad Michael Murray) why she didn’t tell him about Liam (Marcus Rosner). In addition to Cal and Liam facing off while wood chopping, Liam appeared to grow closer to Maggie as they shared a tender moment in the present timeline.
“The vow she made or the life she chose,” read the message in the sneak peek.
Based on the book series by Robyn Carr, Sullivan’s Crossing follows neurosurgeon Maggie after she moves back home to rural Nova Scotia to reconnect with her estranged father, Sully (Scott Patterson). The brief getaway turns into Maggie making plans for a future in Sullivan’s Crossing with love interest Cal.
Season 3 of the hit series, which started streaming on Netflix in August 2025, threw a wrench in Maggie and Cal’s relationship just as they were getting to a good place. After arguing about whether Maggie was taking things too slow, they made plans to move in together — just as a new guest named Liam checked into Sullivan’s Crossing.
Liam then approached Maggie and revealed he was her husband, which came as a surprise to both Cal and Us. Showrunner Roma Roth later teased what viewers could expect from the show moving forward after the shocking reveal.
“I’m absolutely thrilled that Sullivan’s Crossing is returning for a fourth season,” Roth said in a statement after the finale aired. “Seeing it resonate with a global audience and watching the ratings climb have been a dream come true. Season 4 will explore themes of change and transformation so you can expect a whole new set of exciting and emotional challenges for Maggie and Cal.”
Kohan also shared her reaction to the twist.
“I remember hearing a little bit [about Liam early in season 3]. I didn’t know they were married,” Kohan told Swooon in July 2025. “There started to be talk when we filmed the scene with Lola and having summer flings. I knew that he was going to be coming into it, but I didn’t really know when or in what capacity. That cliffhanger was so much fun for me to read as well.”
Kohan acknowledged that Maggie’s trepidation about getting serious with Cal could have come from her past with Liam, adding, “I feel like it came up so last minute that I didn’t really have time to think about it, but I think it definitely would. It makes a lot more sense, for sure, for her to be more hesitant.”
The actress noted that she was just as in the dark about Liam’s role in season 4 as the audience.
“At the same time, I still don’t know the history, so who knows when we get to find out a bit more of that information, what he really means that he’s her husband and all that kind of stuff,” she continued. “I mean, there’s gonna have to be a few conversations had [between Maggie and Cal]. It’s going to be a trust thing to have to build up again because that is a pretty big thing to leave out.”
Sullivan’s Crossing is currently streaming on Netflix. Season 4 premieres April 20 on The CW.
