Bobby isn't doing much better the following morning; the doctor recommends they do the test he recommended, earlier than planned. When Andy hears about these tests it puts him on edge and makes him more difficult to work with than usual. While Jill waits with Diane, the other detectives investigate the death of a man who was murdered in the park. The tests reveal that Bobby's heart is damaged; the only long-term option is a heart transplant. Meanwhile, back on the case, the detectives interview a suspect who initially gives them misleading information because she is trying to protect herself from the actual perpetrator, a man with ties to the mob.