British Blenhiems, Beauforts and Beaufighters Attacking a Axis Convoy in the Mediterranean Late 1942

At 0:09 the aircraft is indeed a Bristol Blenheim, specifically a Mk V as one can tell from the distinctive nose.

At 0:20 however it is a Bristol Beaufighter that was the heavy fighter derived from the Bristol Beaufort that can be seen dropping torpedoes at 0:33.

These aircraft were almost certainly flying from Malta and their efforts contributed directly to Allied victory in North Africa. In August 1942, Malta's strike forces had contributed to the Axis' difficulties in trying to force an advance into Egypt. In that month, 33% of supplies and 41% of fuel were lost. In September 1942, Rommel received only 24% of the 50,000 tons of supplies needed monthly to continue offensive operations. During September, the Allies sank 33,939 tons of shipping at sea. Many of these supplies had to be brought in via Tripoli, many kilometres behind the battle front. The lack of food and water caused a sickness rate of 10% among Axis soldiers.

The British air-submarine offensive ensured no fuel reached North Africa in the first week of October 1942. Two fuel-carrying ships were sunk, and another lost its cargo despite the crew managing to salvage the ship. As the British offensive at El Alamein began on October 23rd1942, Ultra intelligence was gaining a clear picture of the desperate Axis fuel situation. On October 25th, three tankers and one cargo ship carrying fuel and ammunition were sent under heavy air and sea escort, and were likely to be the last ships to reach Rommel while he was at El Alamein. Ultra intelligence intercepted the planned convoy route, and alerted Malta's air units. The three fuel-carrying vessels were sunk by October 28th. It cost the British one Beaufighter, two Beauforts, three (out of six) Blenheims and one Wellington. Rommel lost 44% of his supplies on October, a jump from the 20% lost in September.