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.
You've Got a Friend in Me (feat. David Giuntoli & Lizzy Greene) — A Million Little Things Cast
Sophie and Eddie sing for Theo on his birthday; Delilah and Regina discuss telling the children the truth which Regina tells her that she sees it from Catherine's point of view.
Only You (From "A Million Little Things: Season 2") — Gabriel Mann & Piper Rose
Catherine gives Eddie a sober anniversary cake; Gary takes "Colin/Wesley" back to his owner; Delilah and the kids cuddle in bed; Rome and Regina open up PJ's DNA test.