Never Trust a Snake Ninjago: Masters of Spinjitzu : Season 1 Episode 4

After the Fangpyres join forces with the Hypnobrai, Lloyd releases Pythor - the last remaining snake of the Anacondrai tribe. Pythor, pretending to be his friend, steals a map from him that shows where the two remaining snakes tribes dwell. Sensei Wu then takes Lloyd under his wing. Note: First appearance of Pythor.