As the town's annual lantern festival nears, Trace and each of the O'Briens attempt to put their own challenges aside so four generations of O'Briens can come together for the lantern festival.
Saying goodbye to Jack has left Elizabeth heartbroken, but she tries to stay strong in front of her class. Meanwhile, wanting to continue the investigation she started with Jack, Abigail tries to outwit Henry Gowen.
Abigail travels to Hamilton to stay with Elizabeth's family and is compelled to accept Bill's help on a personal matter. A heroic act by Jack brings him closer to his ex-fiancee, Rosemary.