After Megan and Marc got rescued the Chaos twins this time captured Lee and Tony while escaping from the mine,Leaving Megan and Marc to contact Jerry for help in which case they discovered their parents Cal and Karen Clark used to be spies working for O.O.P.S.I.E and for Larry and it was them who defeated the twins before. there it was discovered that the Chaos twins are using the Clark siblings as bait to lure their parents out of their retirements knowing that the Karen and Cal will do everything to save them.but while rescuing Lee and Tony the remaining members of the Clark family got captured. with Cal and Karen being frozen and the Clark siblings about to be launched in space.

In the subplot after the Clark siblings save Tammy from the conveyor belt, (Operation twin of trouble part 1) Tammy is now being clingy and begins to act nice hence even buying Megan a new phone and making the Clarks a sweater

Operation Twin of Trouble Part 2
Season 1, Episode 24
Episode guide
Operation Twin of Trouble Part 1
Operation Twin of Trouble Part 3