Open the sewer's cover!

He could find me even if I was buried at the bottom of a sewer covered in fecal matter and urine.

Sewer lines are all covered, but no sign of him.

There's one way out of the sewer, but the manhole cover's closed and a station wagon's parked on it.

There's only one way out of this sewer, but the manhole cover's closed, ...and there's a station wagon parked on it.