It's launch time for the hotly anticipated video game Alien Liberator 2, and who better to invite along than top gamer Ali-A? Ali is promised the biggest game launch ever - but what he doesn't count on is just how real the action is about to get!
When a merciless band of aliens turns up to spoil the party, it's up to Ali to transform from gaming icon to real-life hero. Can he defeat the end-of-game boss and save the day? With a little help from his fans and a very special dog named Eevee, he's going to give it his best shot!
With 3 billion YouTube views and 13 million subscribers across his two channels, Ali-A is one of the most popular faces in gaming.
He holds two Guinness World Records for his Call of Duty content, and is also known for his Pokemon Go videos. In 2017, Ali debuts his brand new CBBC series, Ali-A's Superchargers.
You can find him on his YouTube channels Ali-A and MoreAliA, and on Twitter at @OMGitsAliA.