Codename: Kids Next Door (2002)

S2E24 Operation T.R.I.P.

Father discovers that Numbuh 3 is heading to her native land to connect with the covert Japanese division of the Kids Next Door. In response, he dispatches his top operatives, the Interesting Twins From Beneath the Mountain, to follow Kuki and uncover the whereabouts of the Japanese agents’ secret base, allowing him to plan an attack. However, as the twins shadow Numbuh 3, a series of unexpected events unfold, complicating their mission.