This is how I really really really want it to play out tonight :
Jaz persuades Evie that Harry is a traitor based on the whole shield thing being a farce and all other associated events (him not being murdered, etc). Andrew goes along with it as he recognises that it's his chance to get Harry out. Harry gets banished.
Then Jaz points out the whole weirdness surrounding Andrew's comments about Harry being elusive, and Ross turning on him, etc, to convince Evie and Mollie that Andrew is also a traitor. Andrew gets banished.
Then all the remaining Faithfuls win :)