Christmas Day
The Grayback surfaced on Christmas Day of 1942 when she caught four landing barges off-guard and proceeded to sink all of them. Four days after this, an energy submarine fired torpedoes towards the American Grayback, but these all missed the craft.
A Rescue Operation
During the Grayback’s fifth tour, she conducted an epic rescue operation. Six Americans had been stranded aboard at Munda Bay on the Solomon Islands. Two of the crewmen aboard the Grayback went ashore during nightfall to escape the attention of the Japanese.