Station 51 receives a new trainee: Karen Overstreet, who is determined to prove a woman can do the paramedic's job. A man tries to gas himself, and then changes his mind. During a house fire, Roy tries to save an invalid, and nearly dies when broken wires send electricity through his body. Fortunately for him, trainee Overstreet knows how to use a defibrillator! (thetvdb.com)