Science Ninja Team Gatchaman (1972) : 2x47

Because of the Solarshifter plan and the consequently unusual weather, icebergs break out one after the other at the North Pole. In order to stop a huge iceberg, G-Town goes to Sanbur City in the country Aberika. When Dr. Pandora goes out for a meeting, the Galactor ninja group Galakon sneaks into G-Town instead of her. Through the actions of the Ninja Team, the enemy is completely defeated, but the propulsion system is destroyed and G-Town goes out of control. It falls into a deep sea trench and above it, a huge iceberg starts to cover the trench, making it impossible to exit G-Town. It's Gel Sadra's Seafang plan. The communication network is also destroyed, and the only hope is Dr. Pandora. She gets into the old God Phoenix which is located at Nambu's villa. Straining her untrained body, she melts the iceberg with the Firebird. But Gel Sadra attacks and Pandora gets into a critical situation! Saving her is the Firebird of the New God Phoenix, which was now able to exit G-Town.