Mutiny
Mutiny within the body happens all the time, and this is what leads to cancer. It’s not really known how it happens but healthy cells somehow avoid the internal body mechanisms that regulate cell growth and this is what turns them cancerous. In a lot of cases though antigens alter slightly changing from self to non-self, which means they become targets for the T Cells which then move in and kill them. This is exactly what is happening in this photo, as they’re surrounding a cancer cell and hopefully moving in and killing it.