Only One Can Remain
S4, E2: Lloyd discovers that his father used to train under Master Chen. However, when they go to meet the deceitful ruler, the Ninja realise they are in a tournament where only one can remain.

S4, E2: Lloyd discovers that his father used to train under Master Chen. However, when they go to meet the deceitful ruler, the Ninja realise they are in a tournament where only one can remain.