Chief Vick calls Shawn and Gus to the forest to aid in the search for billionaire Warren Clayton's downed plane. They arrive at the wreckage before the police and find Clayton inside, barely alive. As Gus tries to call for help, Shawn notices a "Wiswall" insignia inside the plane. He also sees that the altimeter reads 118 and spots metal clip with a picture of St. Dwynwen on it. As Clayton starts to fade, he says something about wanting to make amends and be a good father. He manages to cough out the word "Waterloo," then in his last breath asks them to find out who killed him.
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Complete story — includes the ending
The private jet of billionaire hedge fund manager Warren Clayton crashes in a forest. Shawn and Gus manage to find him first and are asked to fulfill his dying wish: to find out who killed him. His widow ( Christine Baranski ) is one of the suspects, and as Shawn digs deeper, he uncovers more than a murder. At the same time, Abigail ( Rachael Leigh Cook ) insists on meeting Henry, which Shawn isn't ready for due to their complicated relationship.