3x21 - Without a Trace

Danny is skeptical when the pregnant girlfriend of his missing estranged brother, Rafael ""Rafi"" Alvarez, and mother of their 9-year-old son, tells him that Rafi has transformed himself into a responsible family man, who recently obtained a loan to open his own body shop. But Danny's investigation uncovers that Rafi has been seen with a convicted car thief, and the large sum of cash he'd been flaunting for his purchase of a body shop didn't come from the bank. Though Jack makes the point that Rafi may have legitimate explanations for the suspicious circumstances, Danny braces himself for the very real possibility that his brother may have put himself in harm's way.