Kate and Toby marry at the Pearson family cabin, with Jack's ashes beside the guest book. When Toby forgets to pack the Daytona Beach T-shirt Kate planned to wear as her something old, she disappears into the woods to scatter the portion of Jack's ashes she had held back — and to resolve why Toby has never appeared in her recurring dream of the cabin. Meanwhile, Toby's parents warn him that Kate's grief makes her a risk to his mental health; Zoe shares her own abandonment story with a withdrawn Deja; Kevin and Randall search for Kate and surface old guilt about the years after Jack died; and the wedding closes with Kevin's public admission of his DUI and rehab, a collective family exhale, and three flash-forwards pointing toward Vietnam, Toby's severe depression, and an unnamed woman Randall and adult Tess are not ready to face.

The episode ...