Volume 5: Redemption
On May 4, 2009, NBC confirmed renewal of Heroes for a fourth season consisting of 18 to 20 episodes. The season began with a 2 hour premiere on September 21, 2009. The fourth season contains volume five, Redemption. Madeline Zima joined the cast as Gretchen, Claire's new friend in college. Rick Worthy will have a recurring role, playing Matt's new police partner, an experienced and capable Los Angeles cop. Robert Knepper joins the cast as Samuel, a new villain. Ray Park has reportedly also been cast "for a sizeable arc".
On July 14, 2008 (in between seasons 2 and 3), the first Heroes webseries, Going Postal, was released. The trilogy of online-only videos introduces Echo DeMille, a seemingly ordinary mailman with an extraordinary ability. The three-part series is written and directed by the same creative team behind the main series. On November 10, 2008 (During Season 3), the second Heroes webseries, Destiny, was released. This is the first of many more webisodes sponsored by Sprint. This series is a tetralogy. Destiny introduces Santiago, chosen by the fans. Santiago wonders if his newfound abilities are either a miracle or something else. On the streets of Lima, Peru, he discovers his powers. On December 15, 2008, the third Heroes webseries, The Recruit, was released. The Recruit introduces Rachel Mills, a marine who survives the explosion at Pinehearst. This follows the finale of Volume Three. On December 22, 2008, the fourth Heroes webseries, Hard Knox, was released. Hard Knox flashes back to 18 months ago, to a time when Matt Parkman knew the villain Knox before his abilities began to manifest. It was originally part of the episode "Villains", but was cut due to time constraints. In April, Nowhere Man picks up where the third season leaves off, and focuses on the life of Eric Doyle. On September 28, 2009, Slow Burn began airing along side Season 4 with multiple writers. It showed behind-the-scenes goings-on of the "Sullivan Bros. Carnival" as it follows the character of Lydia, revealing she has a pyrokinetic daughter named Amanda whom she discovers is in trouble and tries to help.