2x06: Cuban Crisis
2x05: Sub vs. Sub
2x04: Defying Rommel
2x03: U-Boat Killers
2x02: Submarine Sabotage
2x01: In Enemy Waters
1x01: The Wolfpack
1x05: Destroyer Killer
1x04: Atlantic Showdown
1x02: Hitler's Revenge
1x06: Fatal Voyage
