Medical research to harness the power of the human immune system against cancer has made remarkable progress for some cancer patients. New Immune therapy reprograms the regulatory T cells that usually suppress immune responses into inflammatory cells that not only permit but also intensify an antitumor immune response. T Cells are a type of white blood cell that is of key importance to the immune system and is at the core of adaptive immunity, the system that tailors the body's immune response to specific pathogens. The T cells are like soldiers who search out and destroy the targeted invaders. The new therapy has had amazing success in curing certain forms of cancer. Are we on the brink of a cure for this dreadful disease?