The fifth season of the American television drama series "One Tree Hill" is available to download online on iTunes and Amazon. As of October 2015, prices range from $34.99 to $39.99 for the complete season or $1.99 to $2.99 for single episodes.
The fifth season of "One Tree Hill" first aired on Jan. 8, 2009, on the CW network and ran for 18 episodes. The season takes place four years after the conclusion of the fourth season, following the characters' college graduations. Production of the fifth season was disrupted by the 2007-2008 Writers Guild of America strike, and the season was shortened.