As fast he can, Cassian limps and runs down the various corridors while trying not to lean on Kay too much. He can feel that something's not right in his ankle but he can move.

The door out finally appears as the countdown goes in his head and he keeps going forward, not running as that would draw attention but quickly. As they pass an alley partly away from the factory, the explosions start, rocking the ground and Cassian holds onto Kay.