Over twenty-five years ago, the first humans came to the beautiful, unspoiled planet called Doona. Their initial survey had ignored one important fact: They were not alone. The alien, cat-like Hrrubans had settled there first. This conflict led to the Decision at Doona - a twenty-five-year experiment in cohabitation...

Now the twenty-five-year contract is up for renewal. The wild planet they tamed, the home they fought for, and the delicate alliance they share could all be destroyed forever...