Nothing magical about it, it is a real and useful cryptocurrency that is an alternative to government controlled currencies. I do not understand what you mean by "do as a team". Do what, invest? The market price is very volatile. For example a Bitcoin had a current value of $2999.95 earlier today, but when I check now at the time of this post it is at $2417.13. 2 days ago it was around $2200. You can purchase Bitcoins in the US through services such as Coinbase. Circle offer purchases with credit cards. Bittylicious, CoinCorner and Coinbase offer this service in the UK, accepting 3D Secure-enabled credit and debit cards on the Visa and MasterCard networks. Underbanked consumers in the US can turn to expresscoin, which recently launched to serve this market, accepting money orders, personal checks and wire transfers. If you live in a city, prefer anonymity or don't want bank hassles, the easiest option to acquire bitcoin is to make a face-to-face trade with a local seller.
LocalBitcoins is the primary site where such transactions are arranged and prices negotiated. The site also provides an escrow service as an added layer of protection for both parties.