Having decided on a new direction for her career and with a renewed commitment to Cal, Maggie Sullivan's life at the Crossing is finally taking shape until Maggie's ex-husband, Liam, arrives with a shocking revelation which only upends Maggie's life once again and causes Cal to question whether Maggie will ever truly be able to leave her past behind. Shaken by Liam's arrival, Maggie looks into getting him the paperwork he needs, while Cal finds himself wondering why Liam is really there. Meanwhile, Edna tries to convince an overprotective Frank that she's ready to return to work as he focuses on figuring out how to turn the land Glenn gave them into a conservation area. Sydney and Rafe's relationship issues come to a head as Rob receives confusing news from Toronto.

Reeling from the news that she's still married to Liam, Maggie tries to focus on getting licensed in Nova Scotia while Cal jumps in to help her file for divorce. Lola's failed youth

Maggie looks for a doctor to support her application to the board of physicians and Cal discovers information that causes him to question Maggie's history with Liam.

Maggie's residency gets off to a rocky start as Cal shows Ben the ropes at the Crossing and begins to wonder if Liam has any intention of leaving.

Maggie tries to figure out what's causing Tracy's fever as Cal learns that Ben hasn't been honest with them and Liam finally comes clean about what happened in the past.

After learning the truth, Maggie struggles to reconcile her unresolved feelings for Liam while helping Cal look for Ben and Tracy.

Maggie struggles to find the right time to come clean about what happened with Liam while Cal gets an unexpected visitor.

The rift between Cal and Maggie widens as Liam decides he's staying at the Crossing.

A casual outing takes a perilous turn after Maggie agrees to let Liam try and cheer her up.

While everyone gathers to celebrate the land ceremony, Maggie makes a difficult decision as she faces the fact she may have lost Cal for good.