Discover one of the fiercest fighting chapters in the universe - the Ultramarines 4th Company! Sergeant Learchus must take twenty-five newly recruited battle brothers on their first engagement, as they embark on an investigation of the lost patrol ship Guilliman's Honour. What was a routine mission becomes much more when 4th company encounters one of the Imperium's deadliest enemies! Writer Graham McNeill (The Ultramarines Omnibus) and artist Kevin Hopgood embark on a new chapter in the Imperium's fight for supremacy!

Features two alternate covers, both by David Esbri.