Watch full movie online. Robert Powell narrates this engrossing exploration of one of France and Britain's most thrilling and decisive conflicts: the Battle of Trafalgar. The event unraveled on Oct. 21, 1805, when British admiral Lord Nelson and his 27 ships defeated an assault by French emperor Napoleon's 33 ships, cementing Nelson's legacy in naval victories. Dramatized accounts and 3D graphics, along with expert commentary, help recount the unlikely triumph.