This is a summation of episode 14 of the Landscape season 3.
Our heroes have gathered their allies! They've assembled their armies! Having sent JimJam to scout ahead, the armies of good advance against Broxinullst's warforged horde. Fierce battles clash across the Landscape, and many lives are lost in the effort to rout the Titanium dragon's forces. In the end, the warforged are pushed back to the base of Broxinullst's mountain lair, and unbeknownst to anyone, the adventurers themselves land in a tiny boat on the coast of the Razor Sea, using the war to the North to divert attention from their presence.