Helium is the moving and uplifting story of a brilliant, humorous and creative chemistry teacher who braves the trials of frailty and aging, all the while keeping her imagination, charm and dignity intact. Hysterium and preposterous are two of the imaginary elements that Mrs. Molly Kingsley, a former and beloved high-school chemistry teacher, discovers in the laboratories of her old age. Mrs. Kingsley's mind has begun to wander-an 80-year-old mind that is no longer bound by space and time. With the help of colorful bunches of helium-filled balloons, she takes off on imaginative flights of fancy visiting the seashore of her youth, her old high-school chemistry classroom-even dropping in on an old episode of Star Trek. Back on earth, Alice, Mrs. Kingsley's daughter, struggles to keep her headstrong mother's feet firmly on the ground and her mind solidly anchored in reality. It is a losing battle. As sparks fly between mother and daughter, Josh and Ethan, Mrs. Kingsley's grandsons, watch in wonder and amazement as their mischievous grandmother, once a brilliant teacher of chemistry, slips away day by day into the mysterious and unfathomable clouds of dementia. Unit set. Approximate running time: 90 minutes.