Jon and Grossie are hurt giving chase to a speeding Trans Am.

They both end up in the hospital.

Ponch is teamed up with Getraer untill Jon is fully recovered and out of the hospital.

Central HQ has to be quarantined after a boy is brought in suffering from a mysterious disease. Two crazy criminals are bringing trouble, too. The other officers investigate the past of the boy and find a puzzle piece in his ""bomb"". We learn that Grossie is learning Russian.