While everyone anxiously awaits news about newly born Joshua Matthews, Cory's continued self-absorption alienates Topanga, who now considers herself a member of the Matthews family. Even Eric's little friend Tommy views Joshua as his new "brother." It's only when Shawn returns and is accepted by the elder Matthews as "family" does Cory realize where his true values lie. (And, of course, the baby turns out to be fine, though the anxiety of the other parents of premature infants is not minimized.) (thetvdb.com)