Trick or treat! It’s Halloween and Ruli is getting ready with decorations. However, one by one, people begin to disappear. Hiro and the gang investigate.
They all went missing
while they were alone.
جميعهم اختفوا بينما كانوا بمُفردهم
Sie verschwanden alle,
als sie alleine waren.
Sono spariti tutti quando erano da soli.
Todos desapareceram 
enquanto estavam sozinhos.
Все пропадали, когда оставались одни.