When the sole witness against the son of a powerful mob boss goes missing in the woods, it's up to Mark, Rex and Jesse to track him down. The mob boss has already hired an assassin to find the witness.

A young lawyer is snatched off the street, but the team can't track her down until they locate the sole witness - a child who disappeared from the scene. Rex connects with the traumatized boy, who communicates primarily through drawing. The team races to uncover who is behind the kidnapping and at the centre of a money laundering scheme before the criminal rids themselves of their depreciating asset.