The War Master: The Master of Callous • Episode 4 Sins of the Father Sets: The War Master 86% 115 votes TARDIS Wiki Share this page {{ shareFeedback }} Copy link {{ copyFeedback }} Overview Reviews Released Wednesday, December 5, 2018 Written by Guy Adams Runtime 51 minutes Locations Callous Login to track and rate! Signal Strength: 40% What's this? Characters & Enemies Narvin The War Master Also featuring: Teremon Available in: The War Master: The Master of Callous Average. Rating: 72%