Merlin’s adventures continue with episode 11 of Series 4 entitled episode 11, The Hunter’s Heart.

Morgana finds a powerful ally in the Southron warlord Helios (Terence Maynard), as the drama continues. Together they hatch the perfect plan to force Camelot to its knees…

With the Kingdom -- and Arthur -- preoccupied by the arrival of the beautiful Princess Mithian (Janet Montgomery), it falls to an absent friend to raise the alarm.

But with past wounds still raw, can love really conquer all when Guinevere returns? Or is a deadly arrow destined to fly straight into the heart of Camelot?

Colin Morgan plays Merlin and Bradley James as Arthur. Katie McGrath as Morgana, Nathaniel Parker as Agravaine, Richard Wilson as Gaius, Angel Coulby as Gwen, Tom Hopper as Sir Percival, Eoin Macken as Sir Gwaine, Adetomiwa Edun as Sir Elyan and Rupert Young as Sir Leon.

This week’s guest cast features Terence Maynard as Helios and anet Montgomery as Princess Mithian.

Trailer:

The episode airs Saturday 10 December on BBC1.