When Boom came in contact with the Quantum Vapor gas, he gain the power to generate sonic waves. Boom tried to commit robberies after their parents died. Mirage doesn't like the situation she is in where she has to live with her grandmother in the slums. Boom assure her things will be better but she gets second thoughts and helped Static defeat her brother.
Boom was later seen among a group of metahumans trying to get the Quantum Vapor gas to restore their power.