Minifigure: Mutant-Spider Attack!

In a laboratory, 2 scientists were investigating a powerful serum when they saw a tiny spider hanging over them. One of the scientists was paralyzed in terror, while the other screamed frightened and jumped, and accidentally toppled over the bottle with the serum. The serum flowed down to the floor and over the spider. Suddemly, the spider began to grow until it was 3 times the size of the scientists! The scientists started running as the spider chased them, what will they do now?