The heat wave in Las Vegas is intense. Out of the blue, a woman sees a baby locked in a car in the parking area of a mall and asks for help, and a man breaks the window. However, the baby is dead and Capt. Brass, Grissom and Catherine investigate the case. Soon the baby's father Paul Winston appears and says that he forgot to leave the baby in the daycare since it was not his routine. Meanwhile Nick and Sara investigate the case of a young woman, Sophia Renatta, who was found dead in a lake. They find that she met a young man, Mark Young, and they rented a jet ski to ride, but they never have come back. Warrick investigate the death of a man at home with no apparent cause.
—Claudio Carvalho, Rio de Janeiro, Brazil