Grace is stunned to learn Constantine has an estranged son when the son makes a surprise visit to Chicago. Turns out the son is deep in debt to a drug cartel and doesn't have the money to pay them back. Now the cartel wants him dead. Constantine offers to clear the son's debt, but in order to do that, he needs help from Al Trapani. But first Trapani needs some help of his own: his girlfriend is sick and needs a doctor.
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