Season 4 of PL opens with one less Greene in the family-Josh [Austin O'Brien quit in a creative dispute]. The Greenes had sent Josh away to an unnamed special school after he had gotten into frequent spats with Dinah and Claire. But when Russ and Claire hear the news that Josh had been killed as a result of a hazing incident they are beside themselves. Claire ends up having a nervous breakdown. Also, Isaac Hayes joins the cast as Leroy Baker, an old friend of Erasmus'.