. >> allie rogen, thank you. some of the u.s. men's basketball team. >> they're in rio seeking gold and living on board a cruise ship. the secrets of making nba rivals into the best hoops team in the world. you're watching "world news now." >>> "world news now" continues >>> the u.s. men's basketball >>> so the u.s. men's basketball team will be back on the court course. and the team has played three games winning all of them. >> the average margin of victory is 37 points. but the most recent game wednesday against australia was close. >> abc got to hang out with the team and had fun along the way. >> reporter: they're the nba dream team dominating the court. pulling off a nailbiting win over australia. during practice sharing laughs. i might have a neck injury doing this if i talk to you for too long. we might have to make it short. and some close calls. favorite moment? >> opening ceremonies is pretty special. >> reporter: how about a replay? >> it saved your life. >> reporter: thank you. while opponents back home, here in rio

allie rogen is here with the details. >> good morning.ne cold night in a cave, the price is right, but you might have to sleep on a stalagmite. it's not the latest air bb offer. >> a little worse for wear but all smiles. flashing their arkansas state wolf sign. emerging from a cave in arkansas over 24 hours past when they were supposed to return home. it started as a fun day trip. a 25-year-old leading two first year students from japan. one of them documenting the trip on his smart phone. >> we about to enter cave. >> reporter: the save a wonder land. only two miles of which have been mapped out. >> it's so dark, and my bodies are messy. it's dirty. >> they're stalactites. >> it looks good. >> reporter: when they didn't return home by evening, the wife reported them missing. the search started around 1:45 a.m. the next morning. before they were found the director of emergency management described the conditions they were likely dealing with. >> they're crawling in mud and 58 degree water. they have to be concerned about getting too cold,