When a guilt-ridden client has an unexpected change of heart, the Mack team's careful preparation for his grand jury testimony is blown to smithereens. Now, Charlie and Gil must pull out all the stops to defend him from his new enemies and the estrangement of his father.

Meanwhile, Charlie reports for jury duty and unwittingly begins to unravel a disturbing plan to alter the outcome of a crime lord's conspiracy trial. Before she knows it, Charlie's dangerous meddling lands a bull's-eye squarely on the intersection of her personal and professional lives, putting all that she holds dear in jeopardy.