When Kai gets a call about a building on fire, he and his friends go to help.

When Kai and his digger start digging holes for a new housing development, they find that someone else calls it home already. What will they do?

What happens when a bunch of monster trucks race across the Sahara Desert?

Kai decides to enter a digging contest--and finds himself up against a T-Rex!

The sparrowhawk is amazed at the large metal bird it meets... and then he gets to fly in it!

Kai finds a worm on the sidewalk after the rainstorm and rescues him. Then the friendship between a boy and a worm begins.

The first bedtime story for K-Boy. Little Bird wants to play soccer with the T-Rexes. But he's so small. What can he do? The T-Rexes soon find out.