PepsiCo brands such as Doritos, Walkers and Pepsi are joing up this summer for a new 'power of one' campaign.

The campaign includes an on-pack promotion, which will roll out on lines such as Walkers Tear ‘n’ Share, Walkers Stax, Doritos and Pepsi Max. 

Shoppers will have the chance to win prizes, like TVs, branded snack bowls and Pepsi glasses.

To enter the competition, customers must buy two products from the range and and register online.