A bank robbery goes bad when one of the robbers shoots the bank manager. The investigation is lead to by the FBI and Frost’s ex. Maura is sworn to secrecy when the FBI agent informs her that Tommy Rizzoli’s finger prints were on the get away fan and she cannot reveal anything to anyone. When Tommy is arrested, Jane discovers Maura knew and his mad. Tommy swears that his ex-buddy convict was helping him move, the reason why his fingerprints are there. They find evidence that clears him.