Episode 78: Lettie to the Rescue

Season 12
Episode 78: Lettie to the Rescue
A rogue platelet, Lettie, has shown the twins and Liam where the missing vWF is. Do they have the courage to cross the threshold?
A rogue platelet, Lettie, has shown the twins and Liam where the missing vWF is. Do they have the courage to cross the threshold?