Arrow: Sky1, 8pm
The team gain a new member when Sara joins, but Felicity is less than pleased as she feels left out. Sara's time does not get off to a good start, however, as she loses her temper with both Oliver and Lance.
In an effort to prove her worth, Felicity decides to take on criminal mastermind and accomplished thief William Tockman, or 'The Clock King', who is holding Sterling City to ransom. She embarks on a lone mission, putting her life in danger.
Davina: Beyond Breaking Point: BBC One, 9pm
Tonight sees the complete journey of Davina McCall's gruelling seven-day Sport Relief challenge.
The episode charts her progress from Edinburgh to London, where she encounters 50mph winds and sleet as she runs, cycles and swims 500 miles.
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The adverse weather conditions continue as Davina also tackles a snowy trek over Scafell Peak, and an open-water swim across Lake Windermere, of which Davina has a severe personal fear.
Turks & Caicos: BBC Two, 9pm
Turks & Caicos sees the return of spy Johnny Worricker, played by Bill Nighy. Last seen at an airport fleeing from his paymasters, the action picks up tonight in a Caribbean paradise, where Johnny is being lured back into the espionage industry.
The Caribbean lifestyle is soon put on the back burner as Johnny meets with a shady American businessman, a PR woman, and an old flame, and gets swept up in the world of conspiracy once again. As their activities begin to draw the attention of the government, however, Johnny begins to fear for his life.
The Big Reunion: ITV2, 9pm
It is time for all the groups to head to the recording studio tonight, as the arena tours draw closer. All does not go according to plan, however, after the groups go out on the town till late and struggle to stick to their schedules the next day.
5th Story encounter yet more problems as one member is on the edge of a breakdown when the pressure gets too much...
