diff --git a/xos/scripts/destroy-all-networks.sh b/xos/scripts/destroy-all-networks.sh
new file mode 100755
index 0000000..f590683
--- /dev/null
+++ b/xos/scripts/destroy-all-networks.sh
@@ -0,0 +1,34 @@
+#! /bin/bash
+
+# This will destroy all neutron networks, routers, and ports on Cloudlab. 
+# It even destroys ext-net, flat-net, and tun-net
+# Don't use it unless you really want that to happen.
+
+source /root/setup/admin-openrc.sh
+
+echo "Lots of stuff will fail -- don't worry about it"
+
+PORTS=`neutron port-list | grep -v "+----" | grep -v "mac_address" | awk '{print $2}'`
+for PORT in $PORTS; do
+   echo "Deleting port $PORT"
+   neutron port-delete $PORT
+done
+
+NET_SUBNETS=`neutron net-list | grep -v "+----" | grep -v "subnets" | awk '{print $6}'`
+ROUTERS=`neutron router-list | grep -v "+----" | grep -v "external_gateway_info" | awk '{print $2}'`  
+
+for ROUTER in $ROUTERS; do
+for SUBNET in $NET_SUBNETS; do
+neutron router-interface-delete $ROUTER $SUBNET
+done
+neutron router-delete $ROUTER
+done
+
+echo "Stuff below this line shouldn't fail"
+
+NETS=`neutron net-list | grep -v "+----" | grep -v "subnets" | awk '{print $2}'`  
+for NET in $NETS; do
+   echo "Deleting network"
+   neutron net-delete $NET
+done
+   
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