Ataru, Lum, Mendo, Shinobu, and Jariten all go on a picnic to a remote part of Japan which has some fossils. A group of archaeologists are also exploring this area and using a lot of fancy tricks to make the exploration seem more dramatic than it is.
urusei-yatsura-ep-47Urusei Yatsura Season 1 Episode 47
Urusei Yatsura Season 1 Episode 47
Terror! The Deserted Fossil Grounds Mystery