Wild Kratts - A Sick Kratt

The Kratt brothers were going on another creature adventure, except this time something went up. Chris felt under the weather and was secretly willing to keep it to himself, unwilling to ruin the crew's plans. But Martin, who wasn't easily fooled, could feel that something was disturbing his brother.

What's going to happen? Will Chris' sickness get in his way?
Read to find out yourself.