the dea says it's leading toeadi more and more lethal overdosesle and the problem is users haveav no what they'rere getting. gettin we'll have that story comingha up next. t. it's time to get out and explore. look beyond the expected. hidden among the trees. there's a special place. where getting away... brings us so much closer. spring into fun and save $50 busch gardens williamsburg. a whole other world awaits. >> ♪ >> welcome back. authorities are on high alertar after a recent spike in heroin r overdoses. and now there's another drug d on the scene and it's evens more deadly. law enforcement blames an increase of lethal overdoses ove of fentanyl is significantlynyli more powerful than heroin. fox5's laura evans has what h wt you need to know.o >> a friend one last time or celebrating -- >> reporter: this is the club no one wants to belongts to, mother who's have lost children to a drug overdose mostly heroin cases here butn at least two of these moms says autopsies revealed it wasn't was heroin as they suspected, itpe, was fentanyl.was fean >> i'm a nurse. i knew it was surgicall