These two volumes contain the reprint of Catwoman vol 2 #33 #34 #35 #36.
Catwoman is knocked unconscious and captured by Hellhound,and wakes up in a tanker boat in the hands of the Collector.
The bad guy wants to use Catwoman as a sacrifical lamb: he wants her to get inside some ancient ruins and find a mysterious stone wheel. The catch is that the place is full of deadly traps.
Selina tries an escape attempt:she jumps to a cabin where some cars are stored and starts the engine of one of them but soon she finds herself helpless and falling towards the sea inside a crushed car.
When she reaches the surface, Hellhound takes her back to the Collector's ship and puts her to sleep again.
Later, Catwoman overcomes many deadly traps and reaches the Wheel,only to be knocked out once more by Hellhound.
This villain cowardly knocks out cold Catwoman three times in three consecutives issues, a little record, I think...