Merlin (2008)

S01E09 Excalibur

Uther's history catches up with him when a mysterious Black Knight crashes Arthur's coming-of-age festivities, tossing down his gauntlet and daring the Knights of Camelot to fight. The formidable Black Knight effortlessly defeats all challengers, leaving everyone stunned. As the battle unfolds, questions arise about the identity of the Black Knight and the source of Uther's growing anxiety.