Synopsis

'Tis the night before Christmas, the Mutts are asleep,

til Mittens hears jingling and gets up to peek.

Can it be Santa? she wonders. But wait -

There's someone else after the Mutts' cookie plate!

Plot

Christmas Eve in Avenger Mansion, Mittens, Lockjaw, Cosmo, Bats and Lucky are all asleep. A noise downstair wakes up Mittens, who thinks it might be Santa Claus.

When Mittens gets downstairs she sees it Gwenpool stealing the cookies for Santa and she attacks the would-be robber. The commotion wakes the other mutts and then come down to see Gwenpool captured by Mittens and the "Howlidays" saved.