Titus gathers enough strength to grab the Power Source, which had been ejected from the Scourge, and Nemeroth is ambushed by Grimskull, allowing the Space Marines to escape.
Titus gathers enough strength to grab the Power Source. The Power Source had been ejected from the Scourge. Nemeroth is ambushed by Grimskull. Nemeroth is allowing the Space Marines. This is to escape.