La Menace du fond de la Terre

Investigating the disappearance of banks (which have been mechanically submerged to deep inside the Earth), Spidey finds a hole that leads to a maze of underground tunnels, through which Spidey undertakes a perilous journey in search of the lost occupants of the submerged banks, and he comes upon a bizarre city populated by group of Molemen led by a maniac intent on conquest of the "surface people", some of whom- the occupants of the banks-the Molemen are holding prisoner.

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S02E06 - La Poussière du diamant