When did Horizon Season 55 Episode 1 air?
Horizon Season 55 Episode 1 aired on February 5, 2018.


Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.

The rarely seen journey back to recovery of Richard Gray after a life-changing catastrophic stroke. Initially bed bound and unable to do anything, including speak, the initial outlook was bleak, yet occasionally small glimmers of hope emerged. Armed always with her camera, his film-maker wife Fiona captures the moment Richard moves his fingers for the first time, and then over months she documents his struggle to relearn how to walk again.
Direct answers for episode-level questions and details.
Horizon Season 55 Episode 1 aired on February 5, 2018.
This episode runs for approximately 60 minutes.
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