Ash and his Ghostbeaters may have been stuck inside his house for most of this episode, but that doesn't mean there wasn't a ton of carnage and some decent plot movement. Ruby admitted to being mortal while a thrashed and punished Pablo conjured up a special spell to defeat Baal. Meanwhile, Ash was forced to face down his long-dead sister. He may have lost Chet in the process, but re-killing her allowed him to shine in front of his neighbors. "Trapped Inside" made great use of Ash's past, the ensemble, and the siege element.