Opens with "back the attack" 5th War Loan fundraising message. Film title "Target Berlin" seen along with sound and images of impact of bombardments. Scenes from an aircraft manufacturing plant in Canada. A man seen in office over a telephone conversation getting news to build the bombers. Men and women working in the plan talk about the manufacturing of the Lancaster Bomber. Designers,engineers and officers engage in discussion about the blueprints and drawings of the aircraft for production. Workers,engineers and technicians manufacturing and assembling various parts of the aircraft in Victory Aircraft Limited, an aircraft production company. "KB-700" painted on the fuselage of the nearly built aircraft.
Completion of first Canadian Lancaster bomber KB-700. Workers and engineers finalize the work of Lancaster production. Air Force Officers inspect the built aircraft. Celebration and inaugural ceremony of the Lancaster aircraft with musical bands, cheering people visible in the background. Aircraft moves out from the hangar, "VICTORY" written on the top of the hangar at the plant, Victory Aircraft Limited. Flight crew members along with a dog, climb up in the aircraft. Aircraft named the "Ruhr Express", takes off from Canada for its first flight to England. Aircraft lands on the concrete runway in London. Senior Air force officers and other dignitaries receive the flight crew members. Address from Sir Stafford Cripps, British minister of aircraft production with emphasis on the capability of the Canadian Lancaster. Air Force Officers in briefing preparing for attack on Berlin.