The video shows how our lymphatic system works undercover to protect our immune system. The network transports about two liters of lymphatic fluid throughout the body, identifies pathogens, trains specialized immune cells and maintains the balance of fluids. Unlike our cardiovascular system, there is no pump to keep it moving. So how does it flow? And what is the function of those mysterious lymph nodes, which sometimes swell alarmingly? Discover this unsung hero of our immune system, which guards our body round the clock.

What's inside us? Our organs, of course. But they don't always get the attention they deserve. The series "Organized" aims to portray the organs of the human body with 3D animations in a vivid, funny and entertaining way helping viewers of all ages understand their special characteristics and how they work.