 Mike Vlasek returns to the ED after a six-month detox for morphine addiction to discover Frank and Jack have problems just as serious as his own. During an operation with Mike, Jack is shocked when he recognises the patient in front of him - one he would rather forget. Frank s obsession with Bart s recovery has consequences for Zoe and Gabrielle who struggle to cover for Frank s absence with Zoe missing a diagnosis which sends her patient Sharon into renal failure. Eve has some news for Frank but because he is distracted by Bart she doesn t tell him but ends up telling Mike instead.