Silent But Deadly, Part 2 is the 21 episode of Grossology.
Fartor and his new apprentice, Far-Ty join forces to drill into the planet core and turn the earth into one big gas planet. Will everyone on Earth be forced to breathe noxious gas and join Fartor’s army of the fart-breathers or will Abby with Labrat's help be able to save her Brother and the planet from a lifetime of stink!
After being captured by Fartor and put in a big Dutch oven and going to the fart side Ty now as Far-Ty battles his sister winning with an ambush.The duo goes to a hydrogen sulfide filled lake to get out of their hover breathing suits and to discuss the plan.The plan for world domination.Meanwhile, Abby asks lab rat if he has a lead to where Ty might be when he sneaks up on lab rat and loses signal.
Far-Ty saying lab rats hiding and can't hide from a fart, lab rat comes out looking like a video game character. Far-Ty says video games don't count. Lab rat fires snot at the villain but miss and are soon caught in a fart cloud-filled room. Abby rushing in lets Labrat-free. Abby asks what was Ty's purpose for being there. Lab rat says ty wanted something with the lab's computer. The scene switches to deep underground. Fartor saying the disaster of a result if the plan works. Lab rat tells Abby what would happen if the gases did set off. Then Abby gets an idea and tells lab rat she will need some heavy duty modifications to the grs1 lab rat gets to it. Underwater they get another sneak attack from Far-ty. Telling her there a team Then she needs a good idea. Then she gets a good idea and says it's time to cook up some seafood. And defeats the giant robot.Far-ty getting mad says never trust anything that doesn't fart. Meanwhile, at the gag lab rat finds hope in stopping the gas release and curing ty.Then the fart breathers start drilling. Then a timer comes up and ty says he is still amune to being a villain. Then they do a video explaining their plan. But Abby won't go down without a fight.And heads to the underground area and confronts her villain brother.She tells ty he has to fight the fart. But Ty tells her he likes being Far-ty. And Abby jumps on ty and takes out his suits methane tank and replaces it with a fresh air tank. Ty goes unconscious for a few seconds but then is revived and tells her his name is Far-Ty. Then the timer says one minute and greets Far-ty and Abby. Abby asks why didn't the fresh air cure work. And Far-ty gives Fartor the bacteria device. Then Fartor orders ty to take to the gas pump. Then Abby wants ty to think about what he is doing. then in a minute Ty finally realizes where he belongs. And tells Fartor they are family and defeats Fartor and saves the city. And is taken back to the gag lab for a scan and it's all good. Until Insectiva arrives and Ty a headstart on Abby.