Learning part of Jack's shameful past has already shocked the two people he loves. Can their relationship survive knowing the whole truth? Jack is steeling himself to tell Laura the truth, when she calls him, absolutely furious. Her son, Joe has heard that Jack thinks he's his father. Jack is already dealing with his ex-girlfriend Penny's comments about how strongly the teenager resembles him. She gave their son up for adoption and said she didn't want to be involved in his life - and Jack doesn't want her involved, either. If Joe is Jack's son, is Jack under a moral obligation to tell Penny the truth: that Joe is her son, too? In the middle of this, his favorite horse colicks and needs an immediate operation, which may or may not save his life. Meanwhile, Father Michael is urging him to evangelize the bullied kid he's helping out. Then a classmate plants the idea that Jack's real interest is in Joe's mother, not him. Joe is devastated. Can Jack persuade Joe that he loves him - regardless of the outcome of a paternity test? Will Laura let Jack see her and Joe again, once she knows the whole truth about him?