Convicts from Dimension X

S7 E17: Thanks to a malfunction in Donatello's InterDimensional Early Warning Detection Machine, a tear has occurred in the fabric of space and time, allowing two heinous criminals from Dimension X, Skarg and Dementor, to arrive in The City - Times Square. Unfortunately, both Irma and Vernon, who are working together on a story and just happened to be in the neighborhood, disappear as Skarg and Dementor arrive. It does not take long for Skarg and Dementor to realize that they could rule the world, but first they must recruit some more help from Dimension X .Back in the Dimension X Penitentiary, Vernon panics as he and Irma find themselves behind bars.