“Brother’s Keeper” is episode fourteen of season one of The Tomorrow People.
At the end of the previous episode, “Things Fall Apart”, Stephen discovered that his mother was also one of the Tomorrow People – something she’d been hiding for years, although not from Stephen’s father, as he also kept it secret from Ultra. Cara also kicked John out. Jedikiah reveals to Stephen why he had Stephen’s father – his brother – killed by John.
There’s also apparently another breakout, who can kill. Yet another Tomorrow Person with the ability to kill? The inability to kill seems rather flexible if the story requires it. This one appears to be working as an assassin – except there are two of them. Which results in Jedikiah making a speech that seems rather applicable to him too.