" Cave Dwelling Sponge " is actually the first segment of (often listed as production number 216a), rather than Episode 5. It first aired on September 23, 2017. Episode Overview
: While on a nature hike, SpongeBob uses hot chocolate to melt ice in a cave to free Patrick's tongue, inadvertently unfreezing Spongy Spongy , a prehistoric sponge. [S11E5] Cave Dwelling Sponge
: Spongy Spongy follows SpongeBob into town, fascinated by the "squeaky" sound of his shoes. He mimics SpongeBob’s movements but causes chaos, leading the police to arrest SpongeBob for the property damage. " Cave Dwelling Sponge " is actually the