Nana Gallagher Had an Affair (S01E10)

Title: Nana Gallagher's Secret Plot: When the legitimacy of the children's parentage is thrown into doubt, Frank finds himself in a tight spot and turns to Carl for assistance. As they navigate the tangled web of family secrets, tensions rise, and the truth becomes increasingly elusive. With Carl’s help, Frank must confront the implications of the revelations and decide how to address the fallout within their chaotic family dynamic.