Underground Base is the fifth episode in Season 1 of Secret Life. It aired on March 13, 2015, garnering a total of 7.68 million US viewers. It was written by Aaron Moon and Verna Chung and directed by Chelsea Lee.
Mike builds an underground base for the team to use in their mission to save their city as their headquarters. The team begins to search for the origin of the dreads, with Vanessa bringing in high tech lab equipments to examine their biology.