Rob is pretty unenthusiastic about the prospect of celebrating brother-in-law Fergal's 40th birthday. Sharon comes face to face with her mum's new man, while Fran and Chris drunkenly party with their new partners.

Catastrophe Season 4 Episodes...

• s04e01 - Series 4, Episode 1
• s04e02 - Series 4, Episode 2
• s04e03 - Series 4, Episode 3
• s04e04 - Series 4, Episode 4
• s04e05 - Series 4, Episode 5
• s04e06 - Series 4, Episode 6

Catastrophe Show Summary

A comedy following an Irish woman and an American man who make a bloody mess as they struggle to fall in love in London.

Clumsy lust, instant pregnancy, and genuine disaster provide the foundation for this flaming hovel of a relationship.

In a mess of events always in danger of slipping out of their grasp, Rob and Sharon must also learn to deal with her largely awful friend; his eccentric Bostonian mother; and attempt to navigate the choppy waters of their ever-more-complicating lives.

Can Sharon, "an extraordinarily good-smelling woman" and Rob, "a sturdy love-maker" steer through the increasingly thorny situations they find themselves in and still find time for an emergency shag in a stairwell? Prepare to find out.