The six-part limited series is based on Joseph Heller's classic novel of the same name, reported Variety.
All six episodes were co-written by Luke Davies and David Michod.
Set in Italy during World War II, the story focuses on Captain John Yossarian (Abbott), a US Air Force bombardier who is furious because the bureaucratic rule known as Catch-22, which specifies that a concern for one's own safety in the face of dangers which are real and immediate is the process of a rational mind; a man is considered insane if he willingly continues to fly dangerous combat missions, but a request to be removed from duty is evidence of sanity and therefore makes him ineligible to be relieved from duty.
Clooney is also co-directing the series. Grant Heslov will also direct a portion of the series in addition to executive producing.
The series will be Clooney's first regular TV role since 1994 medical drama "ER".