Welcome to Inner Horner, a nation so small it can only accommodate one citizen at a time. The other six citizens must wait their turns in the Short-Term Residency Zone of the surrounding country of Outer Horner. It's a long-standing arrangement between the fantastical, not-exactly-human citizens of the two countries. But when Inner Horner suddenly shrinks, forcing three-quarters of the citizen then in residence over the border into Outer Horner territory, the Outer Hornerites declare an Invasion In Progress—having fallen under the spell of the power-hungry and demagogic Phil.