River lost his pack because he tired to be friendly with humans. Now he's not sure he can trust them.
But River's mate is half-human, and Josiah insists on working around humans every day. After what happened with his original pack, River is questioning every step he makes, and it's causing conflict with his omega mate. Meanwhile, omegas continue to come down with life-threatening illness that are expected to be caused by a faction of humans who want to wipe out werewolves entirely. The pack is relying on Jax to find the proof to save them.