Nisha's friend Moosh stays over to find out more about life in Justin's House.

A very old spider crab needs the Octonauts' help.

Robert falls into his new invention, and ends up talking gobbledygook.

After a storm, the Octonauts have to reunite a sea horse with its missing mate.

Charlie and Lola are looking forward to a Chinese puppet show, but are squabbling.

Charlie and Marv are doing their Spanish homework, which sparks Lola's interest.

When Great Aunt Loretta feels ill and may miss a concert, Grandpa shrinks to cure her.

A surprise school trip is planned, but Lola worries she might get lost.

The Octonauts try to pull Peso out of an oceanic trench.

A young dolphin follows Kwazii home.