A tunnel collapses, and Dr. Banba and his ex-girlfriend must escape. 
Is this what caused the collapse?
أهذا ما تسبّبَ بالانهيار؟
Hat das den Einsturz verursacht?
C’est ce qui a causé l’accident ?
Quindi la causa del crollo era questo?
Essa coisa que causou o colapso?