It's now 100 days since Al Jazeera's journalists were detained in Egypt. The trial of our colleagues Peter Greste, Mohamed Fahmy and Baher Mohammed is due to resume on Thursday. They are falsely accused of providing a platform to the outlawed Muslim Brotherhood. A fourth journalist - Al Jazeera Arabic's Abdulla Al Shami - has been imprisoned without trial since last August. And after 77 days on hunger strike, his health is deteriorating. Al Jazeera rejects all the charges against its journalists and demands their immediate release. For all this time their families have been fighting for their release. Al Jazeera's Hashem Ahelbarra has the details of the campaign to set them free.