When You're Smiling

 was the forty-sixth episode of Series 25 and the 777th episode of Casualty overall.

Plot
Furious to find himself under investigation by Jordan, Adam is banished to CDU. He is joined by Kirsty and the A team are reunited. They're working well together until paedophile Matthew Haddon is admitted with liver failure. Desperate to cover his tracks, Adam shuts out Kirsty who is furious to be excluded and appalled when she finds out why. Adam needs to confess his actions to Jordan.

Meanwhile, Mads mends the hurt between a father and his young son and Donna, who deals with a life-threatening disease by living life to the max, helps Kirsty finally make a decision about the future.