After an argument with Louise, Big Mac is feeling isolated from the gang and fed up.
However, when his long-lost friend Snapper is brought into the ED after being injured in the storm, Big Mac finds a cause he can get behind and tries to persuade his grumpy friend to have urgent surgery.
Elsewhere, Jeff and Tamzin bring in the Eldon family - mum Maria, dad Gray and daughters Maddy and Siana.
As Gray is treated for a fractured skull, Tom, Jeff and Tamzin are left to piece together the puzzle of what really happened behind closed doors. Was it an accident, a case of a self-defence or something more complicated?