After blowing up an alien army and saving humanity from extinction, regular guy Mulligan must figure out how to lead his fellow survivors as president.

To start rebuilding society, Simon and Farrah ask Mulligan if they can take a census. But there's one thing they didn't count on: catching feelings.

If former President Brad Chadman survived the invasion in an alien-proof bunker, will Mulligan take one for the team and relinquish his power?

Mulligan tries to convince cruise ship passengers — and potential future voters — to join him on land, but the Thirsty Princess is just too much fun.

When Mulligan learns about presidential assassinations, he changes his policies to avoid a similar fate. Meanwhile, Farrah worries she's mothering TOD.

An unexpected visitor hatches a plan that could destroy humankind unless Mulligan can act fast. But all of his cabinet — except Lucy — has abandoned him.