New nurse Kirsty's assertive approach ruffles feathers in the ED.

Zoe realises how important Jordan is to her, while Ruth meets a handsome stranger.

Lenny and Yuki discover the Crypto outbreak's source. Charlie's faith in Shona is tested.

Adam is forced to face the loss of his son, while Jay could be in mortal danger.

Lenny digs deeper into the Crypto cover-up, while Charlie gets tough with Shona.

Zoe tries to come clean to Jordan, but only digs herself in deeper.

Lenny is offered the ultimate bribe, while Charlie is forced to make a tough choice.

Charlie wants to keep his promise to help Megan die, but can he really go through with it?

Lenny and Yuki's fight for the JAFA fellowship comes to a head.