A prisoner makes a violent escape during a visit to the dentist. His accomplice is wounded and left behind. Fleeing from the police, the escaped prisoner holds a ballerina class hostage and demands the release of his friend. It's up to Richard and Rex to diffuse the situation and save the day!

Richard goes undercover to find out why patients at an institution are being murdered. He entrusts Rex to Stockinger's care; but he escapes.