Ultimatum - S26.E21

The team go after Nigel Wren who has been grooming young girls on line pretending to be a 13 year old boy. Jacob and Terry go into Wren's house to put a trace on his Internet activity and they find out that he has made an arrangement to meet Kelli Sutton. The officers manage to arrest Wren but there is no sign of the girl at the meeting place.