Naruto Episode 50
Lee’s increased speed overwhelms Gaara’s sand defenses. Lee opens the Fifth Gate and uses his most powerful attack, Hidden Lotus. Unfortunately for Lee, Gaara survives by softening his fall with sand and uses his sand coffin to crush Lee’s left arm and leg. Gaara moves his sand to finish Lee, but Guy blocks the final attack. Lee, though unconscious due to the pain, rises to continue the battle, his desire to win fueling his broken body. Guy regrets teaching Lee such dangerous techniques, but vacates the ring for the final match between Choji Akimichi and Dosu Kinuta.
Source: Wikipedia
Naruto Episode 50 – The Fifth Gate: A Splendid Ninja is Born!
