"You are the last Roman commander loyal to Caesar Romulus Augustulus. Soon you will be attacked by Odoaker and his barbarian friends. Find Caesar's relic and make up your defenses. You will not be able to hold your city for a very long time. Prepare to move to Britain in order to build up the resistance to Odoaker, but first kill the Briton leader Vortigern, so you can rule easy over his country."
Next to this challenge there are quite some surprising events and nice eye candy, a collection of a lot of new and old things.
The campaign has been further polished and greatly improved since the scenario appeared on AOKH.