PLYMOUTH, WI (WHBL) - There was a bomb threat Monday at the Walgreen’s Store in the city of Plymouth - similar to one which occurred in Oconomowoc Monday afternoon. Plymouth police said a male caller told employees to give him the money or a bomb would go off. Chief Jeff Tauscheck said the store was evacuated, searched and then re-opened. Meanwhile, yesterday afternoon the Milwaukee bomb squad was called to a 7-Eleven store in Oconomowoc after a caller demanded the store load cash onto a prepaid card or a bomb would go off. No bomb was found. The incident was believed to be tied to a nation-wide scam.