Ep 9. Operation: K.N.O.T. / Operation: C.L.O.S.E.T.

In Codename: Kids Next Door season 4 episode 9, titled "Operation: K.N.O.T. / Operation: C.L.O.S.E.T.," the focus is split between two different missions undertaken by the ever-resourceful members of the KND.

The first mission, "Operation: K.N.O.T.," sees the KND attempting to thwart the plans of former classmate turned Gravy Train conductor, Brent. Brent has a plan to turn all of the world's mustard into gravy, but the KND is on the case. Numbuh 4 takes the lead on this mission, after some initial reluctance on the part of his teammates due to his known obsession with mustard. But it turns out that Numbuh 4's love of mustard may just be the key to saving the day.

Meanwhile, "Operation: C.L.O.S.E.T." finds Numbuh 2 and Numbuh 3 going undercover as new recruits at a sinister clothing store run by the KND's nemesis, the delightful children from down the lane. The delightful children are using their store as a front for some kind of nefarious plan, and Numbuhs 2 and 3 are determined to find out what it is. But they quickly discover that working in the store is no easy task, as they are subjected to a series of bizarre and humiliating initiation rituals designed to weed out potential traitors.

As the two missions unfold, the KND members face a variety of challenges and obstacles, including Brent's army of gravy-loving condiment mutants, and the delightful children's fondness for mind control technology. But they also draw strength from their close relationships with one another, and a fierce dedication to protecting the freedom and rights of kids everywhere.

With high stakes, clever gadgets, and plenty of action-packed hijinks, "Operation: K.N.O.T. / Operation: C.L.O.S.E.T." is an exciting and entertaining episode of Codename: Kids Next Door that is sure to delight fans of the beloved animated series.