A tight-knit circle of friends is reminded that friendship is a million little things.

Gary and Maggie make a difficult decision. Katherine and Greta explore options for the future. Eddie and Delilah realize they need to make a change.

Rome helps PJ through a personal crisis, while Gary and Maggie’s relationship takes a turn; and Delilah, Eddie and Katherine make tough decisions that will affect their families.

Gary has trouble dealing with Maggie’s life-changing decision, which takes him back to when Jon was there for him during his chemo treatments; Rome finally opens up to his dad about his internal struggles; and Katherine battles balancing being a working mother without Eddie.

With questions still lingering around Jon’s death, his loved ones try to move on, each taking meaningful steps forward in their own lives. As most of them begin to accept that they may never get the explanation they desire, an unexpected member of the group decides to dig even further into the mystery behind Barbara Morgan.

As Eddie and Katherine prepare to renew their vows, Eve goes into labor and everyone rushes to the hospital. Meanwhile, things are getting serious with Delilah and Miles. Maggie shares some shocking news with Gary, and Eddie learns more about his involvement in the mysterious lake accident.

It's the first anniversary of Jon's death and everyone reflects on how much their lives have changed over the last year. But for Eddie, his dream opens up a new mystery.

Gary attempts to plan a romantic date with Maggie with the intentions of getting her to open up about a secret she has been hiding; Eddie begins to understand the sacrifices Katherine has made and attempts to stall Theo’s play as a grand gesture to win her back; and Rome takes steps to consult with a doctor.

Recurring nightmares force Maggie to face a life-altering trauma from her past, while in real life, the group finally discovers that her cancer is back. Gary seeks help from an unexpected someone in order to make one final attempt at convincing Maggie to get treatment, but everything comes to a head at Regina and Delilah’s first tasting party at the new restaurant, leaving this circle of friends to wonder if things will ever be the same.

With the holidays quickly approaching, Delilah struggles with telling Sophie and Danny about her pregnancy; and although Jon’s absence makes this time of year especially difficult, the gang comes together to help the Dixons embrace the Christmas spirit.

We go back to the day before Jon’s death, before everything seemed to have fallen apart. Jon is struggling both in his personal and work life, Delilah and Eddie make plans to tell Jon about their secret affair, and Maggie attempts to start her new life in Boston.

As her friends anxiously await the outcome of Maggie’s surgery, an unexpected arrival from her mother leads to a tense first meeting with Gary.

After troubling news, Delilah finds herself once again leaning on her friends in order to help her family, unexpectedly having to rely on Katherine the most out of all people. Despite Gary’s protests, Maggie insists on running the Suicide Prevention 5K with the rest of the gang, where Danny also plans to introduce someone special to his mom and sister.

Delilah struggles to find a way to keep the house, while Ashley has a secret meeting with someone who she thinks may be able to help; and Maggie receives news about her treatment.

On the eve of the new restaurant opening, Delilah tracks down a handsome expert to help with the last-minute details. Meanwhile, Regina struggles with her overbearing mother who causes friction by bringing up disturbing details of her past.

The gang gathers for Theo’s 10th birthday, which is also a significant milestone for Eddie. Meanwhile, Delilah, Eddie and Katherine are at an impasse about revealing the truth about Charlie; Rome and Regina try to keep Sophie from getting too close to PJ, and Maggie helps Gary make a difficult decision about his dog, Colin.

Delilah and Sophie come together during a family emergency; Rome and Regina learn that their potential birth mother could be in danger; and Maggie and Gary face a harsh reality when they attend a mutual friend’s cancer remission party.

When Sophie is distraught after a disturbing encounter, Gary calls in Maggie and Regina for support; Eddie makes an unexpected friend.

Sophie seeks justice for her trauma, and Maggie forces Gary to take a hard look at himself and his relationships. Meanwhile, Eddie goes to extreme measures to fight for his family, and Rome and Regina make big changes for their future.

Cam plans an elaborate surprise party for Maggie’s 30th birthday, but she isn’t the only one to make a shocking discovery. Meanwhile, Tyrell returns home and quickly realizes that things are not the same as when he left

Katherine and Greta celebrate their wedding in spite of several setbacks. Regina faces tough competition, while Maggie and Gary navigate parenting decisions.

After discovering she might not know Rome like she thought she did, Regina is put in charge of making important decisions for him. Meanwhile, Gary tries to convince Maggie he will be there for her no matter what, and Katherine discovers she has a new admirer.

Eddie and Katherine’s divorce mediations become complicated, and Rome’s brother makes an unexpected visit. Meanwhile, Gary and Maggie attempt to check an item off her bucket list.

Delilah reminisces on the past as she closes a chapter, while Greta weighs an offer from Katherine’s mother. Sophie and Tyrell discuss the future.

Gary, Rome and Eddie discover that Jon really thought of everything before his passing by planning a surprise outing for Gary’s birthday at a Bruins Fantasy Camp. However, when a grave secret is exposed, Gary’s special day takes a turn for the worse as it creates conflict for everyone in the group.