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After Michael testifies in court on behalf of a young man who set deadly fires because he had a brain tumor, Michael comes face-to-face with the mother of one of the victims.

After Michael testifies in court on behalf of a young man who set deadly fires because he had a brain tumor, Michael comes face-to-face with the mother of one of the victims.

Maura Murray, 21, a nursing student at UMass, goes missing after crashing her 1996 black Saturn on Route 112 in Haverhill, N.H. Witnesses said after the crash she asked them to call a wrecker but not the police. When police arrived on scene 10 minutes later, she was gone.

It's 112 degrees in the shade when Dave and Rick set off their final run, so they use some North American ingenuity to improvise an air conditioning system for their trucks.