Hal Jordan and the newer version of the Enterprise crew (see last two films) come together and we get to see Sinestro, Atrocitus, Larfleeze, Star Sapphire, Saint Walker, Nekron, Klingons, Romulans and Gorn. As forces combine and split in the struggle against Nekron, alliances are made which result in victory.
Quite engaging and entertaining, this combination works well and the artwork is well-executed. Worth a look.