The underground tennis tournament is finally heading to the final match. The Campbell siblings that Loid and Fiona are up against are playing dirty, as they have altered tennis rackets as well as the staff helping them out. But the spy pair from WISE overcome one obstacle after another and Loid deals the final blow! But right after the match, the State Security Service finds out about the dossier and infiltrates the tournament...
August 21st. Today, I have sealed something 
extremely dangerous within this depository.
في 21 من أغسطس، ختمت شيئًا
.بالغ الخطورة في هذا المستودع
21. August. Heute habe ich etwas
sehr Gefährliches im Lager verstaut.
21 de agosto. Guardé en el almacén
algo muy peligroso.
21 de agosto. He guardado
en el almacén algo muy peligroso.
Le 21 août,
21 agosto. Oggi ho sigillato in questo deposito 
qualcosa di estremamente pericoloso.
Dia 21 de agosto. Hoje eu selei algo
extremamente perigoso neste esconderijo.
Двадцать первое августа.