This Is Us: A Perfect Pearson Thanksgiving Turns Into a Nightmare

Randall discovered the betrayal for himself when he journeyed back to William's Philadelphia apartment to get some old tapes and discovered an envelope with Rebecca's handwriting.

Randall waited until the family was sitting around the dinner table before confronting his mother about what the letter meant.

The explosive moment may be Brown's official Emmy submission tape, because there's not a dry eye in the house when he finally calls Rebecca out for attempting to deprive him of his biological family almost entirely.

Juxtaposed with the perfect fancy feast being prepared at Randall's house was the origin story of the Pearson family Thanksgiving traditions in the past timeline.

Once again, Jack (Milo Ventimiglia) was a total 12, as he rescued his family from a car disaster and a miserable dinner at Rebecca's parents house.

The Pearson family instead ended up at a run-down lodge operated by the eccentric "Pilgrim Rick," with nothing to eat but hot dogs, cheese slices and saltine crackers.

The frays of their marriage are more visible when the kids are teenagers, but would Rebecca really leave the man her kids idolize so much?