"Sticks and Stones" is the 500th episode of Casualty and the 6th episode of the 20th series. It was preceded by "Paper Moon" and followed by "All's Fair in Love and War". This episode was directed by Brett Fallis and written by Stephen McAteer. It was significant, as it marked the 500th episode overall.
Fleur has arranged a party at Tess's house for Sam's 19th birthday while Nina tells Abs the truth about Sarah - she's her ex.