A dying woman comes to Wandin Valley in search of her daughter. Could the girl who she's looking for be Jo? An asthmatic teenager believes that he condition is turning her into an outcast. Jo is determined to help Wendy find her daughter, even though everyone else is telling her not to get involved. Alex tries to stop a local cigarette company form encouraging teenagers to start smoking by giving away free samples. Jo learns that her friend, Fiona McKenzie, is Wendy's daughter, and she is caught between her friendship with Fiona and the promise she made to Wendy.