Episode 504, "Eyes In"
SEASON 3, EPISODE 318 - When a young couple's eleven year old son is near death due to his Leukemia, they take desperate measures to save his life by holding up a bank to get the money for a bone marrow transplant. The young couple has tried to get the real father of the boy to donate his blood for the boy -- but he refuses, because he has his own family. The young couple then thinks that if they find money to pay this man, he will relent. But when that doesn't work either, they end up taking him hostage.[Jules tries to comfort Ed as he stares of pictures of his estranged family, including the sonogram of a child to come].