What episode does the Akatsuki capture 2 tailed cat and slug?

The Akatsuki capture the Two-Tailed Beast, Shukaku, in Naruto Shippuden episode 10, and the Three-Tailed Beast, Isobu, in Naruto Shippuden episode 24.

It's important to note that these captures happen separately. Shukaku is captured from the One-Tail Jinchuuriki, Gaara, while Isobu is captured from the Three-Tail Jinchuuriki, Yugito Nii.