This article covers a real-world subject which should not be taken as part of the Holby universe.
"Ring of Truth" is the 446th episode of Casualty and the 46th and final episode of the 18th series.
Synopsis[]
Lara's big day is put in jeopardy when Abs makes a shocking discovery, and the plane taking Simon to the wedding crashes and explodes after Jim loses control. Oblivious to what has happened, the bride instructs Harry to take her to the airport, and phones ahead to buy a one-way ticket to Australia, while a distraught Bex clashes with Claire and a fist-fight breaks out.