Watch Into the Unknown: My Cancer Story (2025) : Full Movie Online Free Filmmaker Matthew Thomas Ross provides an original look into his personal journey of a rare cancer diagnosis in his 30s. Through expansive childhood home videos, vulnerable interviews, and intimate footage, we follow Matthew as he documents his battle against Stage 4 appendix cancer. While traveling through the seasons, he struggles to navigate the physical and mental toll of a diagnosis full of so many unknowns. He ultimately finds hope and purpose in completing his first feature film; this documentary.