Kosta, the Greek Australian

Eight year old Kosta lives with his family in Melbourne, Australia, and is super excited when he finds out his grandmother - yiayia Maria - is visiting from Greece. Kosta shares the news with his friends who are looking forward to meeting her.

But what happens at the airport that squashes Kosta's excitement?

Will his friends meet yiayia Maria and when?

What does Kosta learn from yiayia's visit and what is the message she leaves behind, before returning to Greece?