Corner Gas Season 3 Episode 8 Trees a Crowd ( Air Date 2005-11-07 ) Genre Comedy category. Overview "Brent and Hank rediscover their old tree house, only to find that it's been taken over by a new group of kids. Deciding that they want it back, Brent and Hank sink to new lows in their fight to reclaim a piece of their lost childhood. Elsewhere, Wanda escapes police custody; Lacey takes up a new sport; and Oscar has problems in affairs of the heart.".