The search is on for 10 Americans who will travel to Japan and show that they have the strength, stamina and the guts to make the ultimate ascent to total victory.

The search is on for 10 Americans who will travel to Japan and show that they have the strength, stamina and the guts to make the ultimate ascent to total victory.

Aliens may have caused various disasters, as depicted in the Bible and other texts, or even tried to warn man of them; such as Noah of the Great Flood. Also proposed is that some disasters ushered changes in human evolution and that our leaps in technology over the centuries were achieved with alien help.

Jason Segel, Reggie Watts

Amanda Peet, Jay Thomas, Darlene Love

Zachary Levi, Whitney Cummings, the West Angeles Choir

It is time for the Winter Wrap Up, when Ponyville prepares for spring. Twilight wants to take part as well, but as Ponyville by tradition wraps up winter without magic, Twilight is unsure how she can help. Being able to properly help any of the wrap up teams, she might find a purpose when arguments arise among the teams.

The panelists on this episode are Daniel Radcliffe, Lee Mack and Graham Norton.

Mark has invited his parents over for Christmas dinner. Everything has been planned down to the last detail but Jeremy has become over excited and Dobby and Super Hans show up as unexpected guests.

Graham's Christmas list includes funnymen Matt Lucas and David Walliams, and The Doctor himself - Matt Smith.