Heirs of the Night Season 2 Episode 10 Two minds as One

What the hell happened on the battlefield? Did van Helsing really betray them? How did Dracula end up on the ship with the Heirs? Why is Alisa passed out, as is Dracula? Inger tries to get Lars to snap out of it, he is conflicted; how can he be a clanleader of the strongest clan if he could not save the others? Lars needs to be strong. For Alisa, but also for Joanne and Malcolm, who are held by Van Helsing. Without Alisa, Lars needs to come up with a plan to get Malcolm and Joanne out