Sonic Underground (1999)

S01E21 Dunes Day

Sonic and his brothers journey to the remote areas of Mobius to enlist a nomadic tribe for the Resistance. Their van breaks down, but a tribesman comes to their rescue. When they reach the camp, Manic uncovers a shocking secret: the tribe's chief has been roboticized, a revelation that could lead to the chief's expulsion from the tribe.