When civil war breaks out in the Griffon Kingdom, Equestria does what the Princesses decide is best- maintain a policy of isolation and observe. Unfortunately, such plans almost never fall through without complications, and an attack on Equestrian soil forces the ponies to take a side. Nimbus and his squadron are swept up into the gathering storm, but the pony soon finds himself questioning whom he can and cannot trust. For in war, nothing is always as it seems...