Vine.After inadvertently unleashing a giant plant on the city from a seed he found in the house of a missing scientist, Peter Parker travels back in time to 3,000,000 B.C. in order to find the professor himself. Spotting a great stone city in the distance, Peter quickly doffs his school clothes to reveal the costume of Spider-Man and, after a battle with an amphibious monster, is captured by a tribe of primitive blue giants...