While Fin and Olivia are on a stakeout, Fin goes into a convenience store when two men come in, intending to rob the store. From the street, Olivia can hear shots fired and runs inside only to see the two guys who were going to rob the store dead and Fin -- who was also shot, hovering over a little boy whose life he saved. Thankfully Fin is going to be all right and ends up being reunited with his now teenage son, Ken. The plot thickens when a woman comes forward and recognizes Fin from when he worked in Narcotics. He promised that he would find her daughter, but never did. He must now finish what he started several years ago.
This was a great episode. I love that we get to meet Ken, Fin's estranged son. The fact that Fin feels that he needs to finish what he started by finding the girl who he was looking for several years ago was commendable. Though it was very bittersweet since she turns out to have died; yet she has a baby and when Fin reunites the baby with her grandmother, the look on Fin's face was a mix between him being glad that the girl was found and sadness, that he had found her too late. All in all a great and well written episode.