Transformers - Prime: Season One - Darkness Rising DVD (2015) Stephen Davis Title: Transformers - Prime: Season One - Darkness Rising Leading Actor: Stephen Davis Region: Region 2 Duration: 107 mins Format: DVD / O-ring Type: DVD No. of Discs: 1 disc(s) Studio / Publisher: Warner Bros. Home Ent. UK Release Date: 20 Jul 2015 Edition: O-ring