It's the F2s first shift after Heather's death. All three are nervous, and their confidence sinks further when Adam palms them off onto Zoe for the day - he's got too much to deal with in the wake of Heather's accident. Zoe, equally stressed over her 'mother's' illness, divides the trio - Yuki is sent on a shout with Jeff and Polly and Lenny and May are assigned mentors for the day: Lenny with Zoe and May with Ruth. All three struggle in their own way and are banned from treating patients for the rest of the shift. Later, in a counselling session with Ben, the trio struggle to open up. But, eventually, each in turn reveal that Heather's death has shaken them. Ben identifies that each of them are missing a part of themselves: just like the Wizard of Oz, May needs a brain, Lenny a heart and Yuki some courage. The three resolve to work on their flaws and realise they can help each other by working as a team.