Bosch is an American police procedural web television series produced by Amazon Studios and Fabrik Entertainment. It stars Titus Welliver as Los Angeles Police detective Harry Bosch. The show was developed for Amazon by Eric Overmyer and the first season takes its inspiration from three of Michael Connelly’s novels: City of Bones, Echo Park, and The Concrete Blonde.
It is one of two drama pilots that Amazon streamed online in early 2014. Viewers were allowed to offer their opinions about the pilot before the studio decided whether to place a series order.
On March 12, 2014, Amazon.com ordered a full season to appear on Amazon Prime, and the season premiered on February 13, 2015.
On March 18, 2015, Bosch was renewed for a second season, which takes inspiration from Connelly's novels Trunk Music, The Drop, and The Last Coyote. The second season premiered on March 11, 2016.
A third season, which adapts Connelly's novel The Black Echo and elements of A Darkness More Than Night, premiered on April 21, 2017. On April 24, 2017, Connelly confirmed on his official Facebook page that a fourth season is currently being written. According to Connelly, the plot will be largely based on Angels Flight with elements from Nine Dragons.