The Missing Invitation

"The Missing Invitation" is the twenty-eighth episode of Little Einsteins.

Synopsis
The team, with their friend Butterfly, sees that the other butterflies have an invitation to a migration party. But then, their friend becomes sad because he did not get his invitation and three butterflies are teasing him. The mail carrier butterfly says that his invitation is in a mailbox but in the wrong place. So the team must go to four places to find his invitation on a mailbox: Niagara Falls, Big Cave in Utah, New York, and the field of cows in Texas.