This Week's Must-See TV: 5 Shows You Shouldn't Miss

Published Mar 25 2012, 09:00 BST  |  By and Morgan Jeffery

Mad Men Season 5 Promotional Photo

© AMC

This week's television schedules are stuffed full of amazing US drama - there's three returning favourites, plus a brand new fantasy series from across the pond...

What's more, fans of homegrown UK comedy are in for a treat - London Olympics satire Twenty Twelve is back for another runaround...

Mad Men: Tuesday at 9pm on Sky Atlantic
It's back. We've waited what seems like forever to reacquaint ourselves with Don Draper (Jon Hamm) and co at Sterling Cooper Draper Pryce, but finally the show is back. Incredibly, next to nothing is known about the goings on of the fifth series, even after we tried to bribe Jon Hamm with the finest bourbon money can buy in our chat earlier this week.

What we have been told is that the action will no longer be taking place in 1965 and the two-part opener will see Pete (Vincent Kartheiser) and Roger (John Slattery) at war as Joan (Christina Hendricks) deals with a mystery guest in her home.

Watch a teaser trailer for Mad Men below:



Justified: Wednesday at 9pm on 5USA
Another of America's best drama series returns to UK shores, as 5USA premieres the third season of Justified. Timothy Olyphant, playing deputy US marshal Raylan Givens, is as cool and charismatic as ever, while new cast addition Neal McDonough is superb as Raylan's latest nemesis, the steely Detroit gangster Quarles. The latest run gets off to a terrific start with this week's 'The Gunfighter' - Dexter's Desmond Harrington is utterly chilling as ice pick-wielding Nix!

Watch a clip from the season three of Justified below:



Twenty Twelve: Friday at 10pm on BBC Two
Though a bit of a slow burner first time round, Twenty Twelve's 'Best Sitcom' win at the British Comedy Awards, not to mention the buzz over the ever-approaching London Olympics themselves, mean that expectations are super high for its sophomore series.

Thankfully, the premise for episode one is complete gold, as the committee discover that the Algerians are threatening to boycott the Games because the Shared Belief Centre does not face Mecca. And if that wasn't enough, Sally's (Olivia Colman) vicious side slips out when she meets a rival for Ian's (Hugh Bonneville) hand. Should be a winner.

Watch a clip from series one of Twenty Twelve below:



Dexter: Friday at 10pm on FX
The sixth season of Showtime's slick serial killer drama gets an airing in the UK courtesy of FX. Expect plenty more twists and a few intriguing developments for the regular cast, as our lead (Michael C Hall) is faced with raising his young son and begins to contemplate the meaning of faith. Dexter's always attracted a strong roster of guest actors and this year's no different - Edward James Olmos, Mos Def and (our personal favourite) Colin Hanks all pop up in this new 12-episode run.

Watch an FX trailer for Dexter season six below:



Once Upon A Time: Sunday at 8pm on Channel 5
Fairytales are the new vampires, we've been reliably informed, and Once Upon A Time is definitely in with a shout of reaching True Blood/Vampire Diaries levels of hysteria. Starring Ginnifer Goodwin, Robert Carlyle and Jennifer Morrison, the fantasy series centres around the town of Storybrooke, where fabled characters like Snow White and Rumplestiltskin live in ignorance of their true identities due to a curse placed long ago by the Evil Queen (Lana Parrilla). It really is an intriguing concept and the sequences in the Enchanted Forest look totally glorious, so don't be surprised if you're still engrossed in this tale long after bedtime.

Watch the trailer for Once Upon A Time below:



What are you looking forward to on TV this week? Let us know below!