After spraying Cosmo and Orbi with "comet dust" so they, too, will be invisible on Earthlings, the Moonlings take the Martians to Earth, where they observe the planet's most fascinating and complex activity: a baseball game.; Mr. Weatherbee forces the kids to paint the cafeteria after a food fight and causes an uproar from their parents.; If Mr. Weatherbee is stuck on his roof (Archie's fault of course), then who is the Santa that showed up at the orphanage?; Cosmo and his cowardly pal Orbi are chosen to man the first Martian expedition to Earth, but the rocket crash-lands on the Earth's moon instead.; Cosmo and Orbi meet the creatures who live on the Earth's moon, all of whom are named "Oog." The Moonlings show the visitors their civilization, and explain that they are invisible to Earth people.; Santa pays a visit to Archie and takes him to the North Pole.; When Hiram Lodge refuses to buy a Christmas tree, Archie and Hiram go into the forest to cut down a tree and end up getting chased by a bear.; Jughead comes up with a plan to get Archie to stop taking Betty for granted.; The guys fool Veronica into thinking she can see the future in her crystal ball.; Archie goes on a map drawing frenzy and gives the girls a route to drive to prove that they can't read a map.; Betty is astonished at how Veronica gets her Christmas gifts.; Mr. Andrews underestimates his son's gift-giving priorities.; Archie accidentally throws Betty's Christmas gift in the trash when he sees a "good-looking chick".; Betty and Veronica convince Pop to dress up as Santa as a way to attract business to the Chok'lit Shoppe for the holidays.; Archie talks to himself, which becomes contagious and spreads around the school.; The class tours the local art museum and Veronica is singularly unimpressed with the exhibits.; Archie goes on a high-speed chase after the dog that took his homework.; Mr. Weatherbee helps Archie try to get rid of his hiccups.; A look at romance throughout history.; Inspired by the trouble Archie seems to cause, Jughead creates an Archie Survival Kit.; Archie gets a lottery ticket and a chance to go see a hot new science fiction film, all on Betty's dime.; Archie waits until the last minute to buy Christmas presents and ends up without any presents to give, until he decides to donate the money to charity in everyone's name.; Betty finds a sweater she wants to give Archie for Christmas, but she doesn't have enough money with her. Veronica has seen this and, when Betty leaves to get more funds, swoops in and buys up the remaining two sweaters. When Mr. Lodge finds out, he takes matters into his own hands.; Professor Flutesnoot's classical group plays for the Archies.; Veronica buries Archie in gifts and ends up taking another man home.