5.03 - official BBC trailer and synopsis (SPOILERS) | 8.25pm 20 October
The Death Song of Uther Pendragon. A stranger gives Arthur the power to summon the dead, so he seizes the chance to speak to the person he misses most - his father, Uther Pendragon. But the young king's decision comes at a terrible price, for the spirit world is a dangerous place, leaving Merlin fighting against the odds to put right the mistake before Camelot is destroyed. Anthony Head guest stars, with Colin Morgan and Bradley James.
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