Complex sentence: Calling their bluff, Brick had the house they were sitting in targetted by a missile that levelled the building killing all inside except the invulnerable Brick who walked away unscathed and now with no opposition to his rule.
Split into simpler sentences: Calling their bluff, Brick has the house they were sitting in targetted by a missile. The missile levels the building killing all inside except the invulnerable Brick who walks away unscathed and now with out opposition to his rule.