 Grey's Anatomy (season 5)

The fifth season of the American television medical drama "Grey's Anatomy", created by Shonda Rhimes, commenced airing on American Broadcasting Company (ABC) in the United States on September 25, 2008 and concluded on May 14, 2009 with twenty-four aired episodes.The season follows the story of a group of surgeons as they go through their residency, while they also deal with the personal challenges and relationships with their mentors.