Krypto the Superdog (2005)

S1E19 Teeny Tiny Trouble

Two tiny aliens find themselves in a huge predicament— their spaceship is out of commission, and they must fix it before they can refuel. To solve their dilemma, they seek assistance from two Earthlings, Kevin and Krypto. However, the only way to catch Kevin and Krypto's notice is by shrinking them down to the same small size as the aliens.