Lost Universes

These are alternate dimensions/timelines that have other been destroy by the Utroms, alternate other by Alien X or changes in the time stream, and other KND users.

Operation Whitehouse Timeline
This timeline was first seen in the Season 6 episodes Operation W.H.I.T.E.H.O.U.S.E. of the original series where Numbuh 1 abandoned his ideals and became president of the United States of America (despite not being an American born citizen). In this timeline Numbuh 1 married Lizzle (Who's first lady) and had a son name Shirley. The end of the episode turn out to be a programming dream by Numbuh 74.239 and Numbuh Infinity using Chester's dream helmet.

The timeline later reappear as it's own separate universe which fit in line with Timeline's backstory prior to kid Nigel gaining control of his adult body. It's reveal he broke up with Rachel 10 years ago and hook back up with Lizzle and was banned from visiting Washington D.C, it also reveal they had a daughter together who Nigel abandoned during the beginning of her pregnancy.

The timeline is regularity visited by Lizle (Nigel and Rachel's daughter from the prime timeline) after Paradox told them this future is right across from their future since their consider alternate futures instead of alternate dimensions. The timeline was erase after Nicole and Lizle defeated that timeline's Vilgax who visited the past and cause Nigel and Rachel's break up. While some events from this timeline has merge with the prime timeline, this timeline is ultimately erased from the Multiverse map.