‘Sullivan’s Crossing’ Season 4 Keeps Maggie’s Secrets Front and Center as the Truth Threatens Everything

Few small-town dramas on television right now carry quite the emotional weight of ‘Sullivan’s Crossing,’ the Canadian romantic series that turned an underdog premise into one of the most quietly addictive watches across two continents. Based on the novel series by New York Times bestselling author Robyn Carr, the show follows neurosurgeon Maggie Sullivan as she returns home to rural Nova Scotia to rebuild ties with her estranged father, Sully, only to find a new life taking root in ways she never anticipated. Over three seasons, the drama turned its cozy setting into a pressure cooker for secrets, romance, and identity, and season four shows no signs of letting that heat die down.

The ten-episode fourth season officially premiered on Monday, April 20 on The CW, with new episodes airing weekly. The season arrives riding a wave of momentum that few broadcast dramas manage to sustain. Season one of ‘Sullivan’s Crossing’ racked up over 5 million views on Netflix, while season three spent three weeks on the Netflix Global English TV Top 10 list, peaking at number three. That global reach has given the show an audience far bigger than its origins as a Canadian network drama might suggest, and the pressure on season four to deliver is very real.

The thread pulling everything apart this time around is the return of Liam, Maggie’s ex-husband, played by Marcus Rosner. The CW’s official synopsis for the season describes how Maggie’s life at the Crossing is finally taking shape after she commits to a new direction for her career and renews her bond with Cal, until her ex-husband Liam arrives carrying a shocking revelation that causes Cal to question whether Maggie will ever truly leave her past behind. That storyline, teased so devastatingly in the season three finale, is now the engine driving every episode. The image in The CW’s own social media post captures exactly that tension, showing a visibly shaken Maggie with the subtitle “But he did leave, Maggie” cutting through the frame like a quiet gut-punch.

As the season unfolds, Liam eventually reveals the truth about past events, and in the wake of that revelation, Maggie grapples with lingering emotions for him while simultaneously trying to support Cal through a crisis of his own. The drama does not resolve cleanly, with later episodes showing Maggie struggling to find the right moment to come clean about what happened with Liam, even as Cal faces unexpected complications of his own. Showrunner Roma Roth, speaking about the new season, said she is “absolutely thrilled” that ‘Sullivan’s Crossing’ is back and that season four will explore themes of change and transformation, promising a whole new set of emotional challenges for Maggie and Cal.

The season also carries the weight of a significant off-screen departure. Scott Patterson, who plays Harry “Sully” Sullivan, does not appear in season four after citing creative differences he described as untenable, and he disputed the production’s initial framing of his exit as a narrative choice rather than his own decision. It is a noticeable absence for a show built around the father-daughter relationship at its core, though early responses have suggested the series has managed to hold its footing. One critic noted that despite the shocking exit, ‘Sullivan’s Crossing’ season four still feels as cozy and comfortable as ever.

For viewers still catching up or eager to binge the new season in full, the wait is almost over. Netflix confirmed that season four will arrive on the platform on June 30, just eight days after the CW finale, continuing the fast-track turnaround strategy that has helped the series build its streaming audience. Whether Maggie’s latest reckoning with the truth brings her closer to Cal or tears the relationship apart for good is the question the show is clearly in no hurry to answer easily. If you have been watching Maggie navigate every impossible choice this season, we would love to hear whether you think she and Cal can survive what Liam’s return has set in motion.