A former girlfriend of Peter's gets kidnapped, because her husband, an ex-CIA...
Counterstrike
Season 1 Episode 15: Cry of the Children
Luke's paternal instincts are aroused when a former girlfriend named Zoe shows up with a baby who she claims is his. Soon, Zoe gets shot and the baby disappears. Peter and Nicole uncover a baby-smuggling ring in Toronto and go after it.