Found by kchung
Not sure this is nationwide, it was previous 25% off but now it's 1/2 off.
Duplo Number Train £6.50 @ Sainsburys(1/2 Price)
Emergency! Drive to the scene, use the extendable ladder with basket to rescue someone from a tall building and then put out the fire. Everything you need to save the day!
Reduced from £24.95 to £7.97 at Amazon